From e06b723675185ef09761fa760e2df72409a3e902 Mon Sep 17 00:00:00 2001 From: Simon Pilgrim Date: Tue, 18 Jul 2017 14:26:07 +0000 Subject: [PATCH] [X86] Add optsize and minsize memcmp tests (D35067) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308311 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/memcmp-minsize.ll | 721 +++++++++++++++++++++++++++++++++++++ test/CodeGen/X86/memcmp-optsize.ll | 698 +++++++++++++++++++++++++++++++++++ 2 files changed, 1419 insertions(+) create mode 100644 test/CodeGen/X86/memcmp-minsize.ll create mode 100644 test/CodeGen/X86/memcmp-optsize.ll diff --git a/test/CodeGen/X86/memcmp-minsize.ll b/test/CodeGen/X86/memcmp-minsize.ll new file mode 100644 index 00000000000..a7f42644ca2 --- /dev/null +++ b/test/CodeGen/X86/memcmp-minsize.ll @@ -0,0 +1,721 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=cmov | FileCheck %s --check-prefix=X86 --check-prefix=X86-NOSSE +; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X86 --check-prefix=X86-SSE2 +; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64 --check-prefix=X64-SSE2 +; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx2 | FileCheck %s --check-prefix=X64 --check-prefix=X64-AVX2 + +; This tests codegen time inlining/optimization of memcmp +; rdar://6480398 + +@.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 1 + +declare i32 @memcmp(i8*, i8*, i64) + +define i32 @length2(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length2: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $2, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length2: +; X64: # BB#0: +; X64-NEXT: pushq $2 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind + ret i32 %m +} + +define i1 @length2_eq(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length2_eq: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movzwl (%ecx), %ecx +; X86-NEXT: cmpw (%eax), %cx +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-LABEL: length2_eq: +; X64: # BB#0: +; X64-NEXT: movzwl (%rdi), %eax +; X64-NEXT: cmpw (%rsi), %ax +; X64-NEXT: sete %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i1 @length2_eq_const(i8* %X) nounwind minsize { +; X86-LABEL: length2_eq_const: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: cmpw $12849, (%eax) # imm = 0x3231 +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length2_eq_const: +; X64: # BB#0: +; X64-NEXT: cmpw $12849, (%rdi) # imm = 0x3231 +; X64-NEXT: setne %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 2) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i1 @length2_eq_nobuiltin_attr(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length2_eq_nobuiltin_attr: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $2, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length2_eq_nobuiltin_attr: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: pushq $2 +; X64-NEXT: popq %rdx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: sete %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind nobuiltin + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i32 @length3(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length3: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $3, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length3: +; X64: # BB#0: +; X64-NEXT: pushq $3 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind + ret i32 %m +} + +define i1 @length3_eq(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length3_eq: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $3, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length3_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: pushq $3 +; X64-NEXT: popq %rdx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length4(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length4: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $4, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length4: +; X64: # BB#0: +; X64-NEXT: pushq $4 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind + ret i32 %m +} + +define i1 @length4_eq(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length4_eq: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl (%ecx), %ecx +; X86-NEXT: cmpl (%eax), %ecx +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length4_eq: +; X64: # BB#0: +; X64-NEXT: movl (%rdi), %eax +; X64-NEXT: cmpl (%rsi), %eax +; X64-NEXT: setne %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i1 @length4_eq_const(i8* %X) nounwind minsize { +; X86-LABEL: length4_eq_const: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: cmpl $875770417, (%eax) # imm = 0x34333231 +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-LABEL: length4_eq_const: +; X64: # BB#0: +; X64-NEXT: cmpl $875770417, (%rdi) # imm = 0x34333231 +; X64-NEXT: sete %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 4) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i32 @length5(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length5: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $5, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length5: +; X64: # BB#0: +; X64-NEXT: pushq $5 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind + ret i32 %m +} + +define i1 @length5_eq(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length5_eq: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $5, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length5_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: pushq $5 +; X64-NEXT: popq %rdx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length8(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length8: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $8, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length8: +; X64: # BB#0: +; X64-NEXT: pushq $8 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind + ret i32 %m +} + +define i1 @length8_eq(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length8_eq: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $8, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length8_eq: +; X64: # BB#0: +; X64-NEXT: movq (%rdi), %rax +; X64-NEXT: cmpq (%rsi), %rax +; X64-NEXT: sete %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i1 @length8_eq_const(i8* %X) nounwind minsize { +; X86-LABEL: length8_eq_const: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $8, {{[0-9]+}}(%esp) +; X86-NEXT: movl $.L.str, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length8_eq_const: +; X64: # BB#0: +; X64-NEXT: movabsq $3978425819141910832, %rax # imm = 0x3736353433323130 +; X64-NEXT: cmpq %rax, (%rdi) +; X64-NEXT: setne %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 8) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i1 @length12_eq(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length12_eq: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $12, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length12_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: pushq $12 +; X64-NEXT: popq %rdx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length12(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length12: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $12, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length12: +; X64: # BB#0: +; X64-NEXT: pushq $12 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind + ret i32 %m +} + +; PR33329 - https://bugs.llvm.org/show_bug.cgi?id=33329 + +define i32 @length16(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length16: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $16, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length16: +; X64: # BB#0: +; X64-NEXT: pushq $16 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 16) nounwind + ret i32 %m +} + +define i1 @length16_eq(i8* %x, i8* %y) nounwind minsize { +; X86-NOSSE-LABEL: length16_eq: +; X86-NOSSE: # BB#0: +; X86-NOSSE-NEXT: subl $16, %esp +; X86-NOSSE-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NOSSE-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NOSSE-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: movl %eax, (%esp) +; X86-NOSSE-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: movl $16, {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: calll memcmp +; X86-NOSSE-NEXT: testl %eax, %eax +; X86-NOSSE-NEXT: setne %al +; X86-NOSSE-NEXT: addl $16, %esp +; X86-NOSSE-NEXT: retl +; +; X86-SSE2-LABEL: length16_eq: +; X86-SSE2: # BB#0: +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-SSE2-NEXT: movdqu (%ecx), %xmm0 +; X86-SSE2-NEXT: movdqu (%eax), %xmm1 +; X86-SSE2-NEXT: pcmpeqb %xmm0, %xmm1 +; X86-SSE2-NEXT: pmovmskb %xmm1, %eax +; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X86-SSE2-NEXT: setne %al +; X86-SSE2-NEXT: retl +; +; X64-SSE2-LABEL: length16_eq: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: movdqu (%rsi), %xmm0 +; X64-SSE2-NEXT: movdqu (%rdi), %xmm1 +; X64-SSE2-NEXT: pcmpeqb %xmm0, %xmm1 +; X64-SSE2-NEXT: pmovmskb %xmm1, %eax +; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-SSE2-NEXT: setne %al +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length16_eq: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %xmm0 +; X64-AVX2-NEXT: vpcmpeqb (%rsi), %xmm0, %xmm0 +; X64-AVX2-NEXT: vpmovmskb %xmm0, %eax +; X64-AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-AVX2-NEXT: setne %al +; X64-AVX2-NEXT: retq + %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) nounwind + %cmp = icmp ne i32 %call, 0 + ret i1 %cmp +} + +define i1 @length16_eq_const(i8* %X) nounwind minsize { +; X86-NOSSE-LABEL: length16_eq_const: +; X86-NOSSE: # BB#0: +; X86-NOSSE-NEXT: subl $16, %esp +; X86-NOSSE-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NOSSE-NEXT: movl %eax, (%esp) +; X86-NOSSE-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: movl $16, {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: movl $.L.str, {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: calll memcmp +; X86-NOSSE-NEXT: testl %eax, %eax +; X86-NOSSE-NEXT: sete %al +; X86-NOSSE-NEXT: addl $16, %esp +; X86-NOSSE-NEXT: retl +; +; X86-SSE2-LABEL: length16_eq_const: +; X86-SSE2: # BB#0: +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-SSE2-NEXT: movdqu (%eax), %xmm0 +; X86-SSE2-NEXT: pcmpeqb {{\.LCPI.*}}, %xmm0 +; X86-SSE2-NEXT: pmovmskb %xmm0, %eax +; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X86-SSE2-NEXT: sete %al +; X86-SSE2-NEXT: retl +; +; X64-SSE2-LABEL: length16_eq_const: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 +; X64-SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm0 +; X64-SSE2-NEXT: pmovmskb %xmm0, %eax +; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-SSE2-NEXT: sete %al +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length16_eq_const: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %xmm0 +; X64-AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %xmm0, %xmm0 +; X64-AVX2-NEXT: vpmovmskb %xmm0, %eax +; X64-AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-AVX2-NEXT: sete %al +; X64-AVX2-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 16) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i32 @length32(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length32: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $32, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length32: +; X64: # BB#0: +; X64-NEXT: pushq $32 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 32) nounwind + ret i32 %m +} + +; PR33325 - https://bugs.llvm.org/show_bug.cgi?id=33325 + +define i1 @length32_eq(i8* %x, i8* %y) nounwind minsize { +; X86-LABEL: length32_eq: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $32, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-SSE2-LABEL: length32_eq: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: pushq %rax +; X64-SSE2-NEXT: pushq $32 +; X64-SSE2-NEXT: popq %rdx +; X64-SSE2-NEXT: callq memcmp +; X64-SSE2-NEXT: testl %eax, %eax +; X64-SSE2-NEXT: sete %al +; X64-SSE2-NEXT: popq %rcx +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length32_eq: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 +; X64-AVX2-NEXT: vpcmpeqb (%rsi), %ymm0, %ymm0 +; X64-AVX2-NEXT: vpmovmskb %ymm0, %eax +; X64-AVX2-NEXT: cmpl $-1, %eax +; X64-AVX2-NEXT: sete %al +; X64-AVX2-NEXT: vzeroupper +; X64-AVX2-NEXT: retq + %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 32) nounwind + %cmp = icmp eq i32 %call, 0 + ret i1 %cmp +} + +define i1 @length32_eq_const(i8* %X) nounwind minsize { +; X86-LABEL: length32_eq_const: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $32, {{[0-9]+}}(%esp) +; X86-NEXT: movl $.L.str, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-SSE2-LABEL: length32_eq_const: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: pushq %rax +; X64-SSE2-NEXT: pushq $32 +; X64-SSE2-NEXT: popq %rdx +; X64-SSE2-NEXT: movl $.L.str, %esi +; X64-SSE2-NEXT: callq memcmp +; X64-SSE2-NEXT: testl %eax, %eax +; X64-SSE2-NEXT: setne %al +; X64-SSE2-NEXT: popq %rcx +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length32_eq_const: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 +; X64-AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %ymm0, %ymm0 +; X64-AVX2-NEXT: vpmovmskb %ymm0, %eax +; X64-AVX2-NEXT: cmpl $-1, %eax +; X64-AVX2-NEXT: setne %al +; X64-AVX2-NEXT: vzeroupper +; X64-AVX2-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 32) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length64(i8* %X, i8* %Y) nounwind minsize { +; X86-LABEL: length64: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $64, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length64: +; X64: # BB#0: +; X64-NEXT: pushq $64 +; X64-NEXT: popq %rdx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 64) nounwind + ret i32 %m +} + +define i1 @length64_eq(i8* %x, i8* %y) nounwind minsize { +; X86-LABEL: length64_eq: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $64, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length64_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: pushq $64 +; X64-NEXT: popq %rdx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 64) nounwind + %cmp = icmp ne i32 %call, 0 + ret i1 %cmp +} + +define i1 @length64_eq_const(i8* %X) nounwind minsize { +; X86-LABEL: length64_eq_const: +; X86: # BB#0: +; X86-NEXT: subl $16, %esp +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl %eax, (%esp) +; X86-NEXT: andl $0, {{[0-9]+}}(%esp) +; X86-NEXT: movl $64, {{[0-9]+}}(%esp) +; X86-NEXT: movl $.L.str, {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length64_eq_const: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: pushq $64 +; X64-NEXT: popq %rdx +; X64-NEXT: movl $.L.str, %esi +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: sete %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 64) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + diff --git a/test/CodeGen/X86/memcmp-optsize.ll b/test/CodeGen/X86/memcmp-optsize.ll new file mode 100644 index 00000000000..30674b86059 --- /dev/null +++ b/test/CodeGen/X86/memcmp-optsize.ll @@ -0,0 +1,698 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=cmov | FileCheck %s --check-prefix=X86 --check-prefix=X86-NOSSE +; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X86 --check-prefix=X86-SSE2 +; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64 --check-prefix=X64-SSE2 +; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx2 | FileCheck %s --check-prefix=X64 --check-prefix=X64-AVX2 + +; This tests codegen time inlining/optimization of memcmp +; rdar://6480398 + +@.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 1 + +declare i32 @memcmp(i8*, i8*, i64) + +define i32 @length2(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length2: +; X86: # BB#0: +; X86-NEXT: pushl %edi +; X86-NEXT: pushl %esi +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movzwl (%ecx), %ecx +; X86-NEXT: movzwl (%eax), %edx +; X86-NEXT: rolw $8, %cx +; X86-NEXT: rolw $8, %dx +; X86-NEXT: xorl %esi, %esi +; X86-NEXT: xorl %edi, %edi +; X86-NEXT: incl %edi +; X86-NEXT: xorl %eax, %eax +; X86-NEXT: decl %eax +; X86-NEXT: cmpw %dx, %cx +; X86-NEXT: cmovael %edi, %eax +; X86-NEXT: cmovel %esi, %eax +; X86-NEXT: popl %esi +; X86-NEXT: popl %edi +; X86-NEXT: retl +; +; X64-LABEL: length2: +; X64: # BB#0: +; X64-NEXT: movzwl (%rdi), %eax +; X64-NEXT: movzwl (%rsi), %ecx +; X64-NEXT: rolw $8, %ax +; X64-NEXT: rolw $8, %cx +; X64-NEXT: xorl %edx, %edx +; X64-NEXT: cmpw %cx, %ax +; X64-NEXT: movl $-1, %ecx +; X64-NEXT: movl $1, %eax +; X64-NEXT: cmovbl %ecx, %eax +; X64-NEXT: cmovel %edx, %eax +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind + ret i32 %m +} + +define i1 @length2_eq(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length2_eq: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movzwl (%ecx), %ecx +; X86-NEXT: cmpw (%eax), %cx +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-LABEL: length2_eq: +; X64: # BB#0: +; X64-NEXT: movzwl (%rdi), %eax +; X64-NEXT: cmpw (%rsi), %ax +; X64-NEXT: sete %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i1 @length2_eq_const(i8* %X) nounwind optsize { +; X86-LABEL: length2_eq_const: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movzwl (%eax), %eax +; X86-NEXT: cmpl $12849, %eax # imm = 0x3231 +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length2_eq_const: +; X64: # BB#0: +; X64-NEXT: movzwl (%rdi), %eax +; X64-NEXT: cmpl $12849, %eax # imm = 0x3231 +; X64-NEXT: setne %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 2) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i1 @length2_eq_nobuiltin_attr(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length2_eq_nobuiltin_attr: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $2 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-LABEL: length2_eq_nobuiltin_attr: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: movl $2, %edx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: sete %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind nobuiltin + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i32 @length3(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length3: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $3 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length3: +; X64: # BB#0: +; X64-NEXT: movl $3, %edx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind + ret i32 %m +} + +define i1 @length3_eq(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length3_eq: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $3 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length3_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: movl $3, %edx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 3) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length4(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length4: +; X86: # BB#0: +; X86-NEXT: pushl %edi +; X86-NEXT: pushl %esi +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl (%ecx), %ecx +; X86-NEXT: movl (%eax), %edx +; X86-NEXT: bswapl %ecx +; X86-NEXT: bswapl %edx +; X86-NEXT: xorl %esi, %esi +; X86-NEXT: xorl %edi, %edi +; X86-NEXT: incl %edi +; X86-NEXT: xorl %eax, %eax +; X86-NEXT: decl %eax +; X86-NEXT: cmpl %edx, %ecx +; X86-NEXT: cmovael %edi, %eax +; X86-NEXT: cmovel %esi, %eax +; X86-NEXT: popl %esi +; X86-NEXT: popl %edi +; X86-NEXT: retl +; +; X64-LABEL: length4: +; X64: # BB#0: +; X64-NEXT: movl (%rdi), %eax +; X64-NEXT: movl (%rsi), %ecx +; X64-NEXT: bswapl %eax +; X64-NEXT: bswapl %ecx +; X64-NEXT: xorl %edx, %edx +; X64-NEXT: cmpl %ecx, %eax +; X64-NEXT: movl $-1, %ecx +; X64-NEXT: movl $1, %eax +; X64-NEXT: cmovbl %ecx, %eax +; X64-NEXT: cmovel %edx, %eax +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind + ret i32 %m +} + +define i1 @length4_eq(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length4_eq: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-NEXT: movl (%ecx), %ecx +; X86-NEXT: cmpl (%eax), %ecx +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length4_eq: +; X64: # BB#0: +; X64-NEXT: movl (%rdi), %eax +; X64-NEXT: cmpl (%rsi), %eax +; X64-NEXT: setne %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i1 @length4_eq_const(i8* %X) nounwind optsize { +; X86-LABEL: length4_eq_const: +; X86: # BB#0: +; X86-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-NEXT: cmpl $875770417, (%eax) # imm = 0x34333231 +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-LABEL: length4_eq_const: +; X64: # BB#0: +; X64-NEXT: cmpl $875770417, (%rdi) # imm = 0x34333231 +; X64-NEXT: sete %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 4) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i32 @length5(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length5: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $5 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length5: +; X64: # BB#0: +; X64-NEXT: movl $5, %edx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind + ret i32 %m +} + +define i1 @length5_eq(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length5_eq: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $5 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length5_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: movl $5, %edx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 5) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length8(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length8: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $8 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length8: +; X64: # BB#0: +; X64-NEXT: movq (%rdi), %rax +; X64-NEXT: movq (%rsi), %rcx +; X64-NEXT: bswapq %rax +; X64-NEXT: bswapq %rcx +; X64-NEXT: xorl %edx, %edx +; X64-NEXT: cmpq %rcx, %rax +; X64-NEXT: movl $-1, %ecx +; X64-NEXT: movl $1, %eax +; X64-NEXT: cmovbl %ecx, %eax +; X64-NEXT: cmovel %edx, %eax +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind + ret i32 %m +} + +define i1 @length8_eq(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length8_eq: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $8 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-LABEL: length8_eq: +; X64: # BB#0: +; X64-NEXT: movq (%rdi), %rax +; X64-NEXT: cmpq (%rsi), %rax +; X64-NEXT: sete %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i1 @length8_eq_const(i8* %X) nounwind optsize { +; X86-LABEL: length8_eq_const: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $8 +; X86-NEXT: pushl $.L.str +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length8_eq_const: +; X64: # BB#0: +; X64-NEXT: movabsq $3978425819141910832, %rax # imm = 0x3736353433323130 +; X64-NEXT: cmpq %rax, (%rdi) +; X64-NEXT: setne %al +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 8) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i1 @length12_eq(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length12_eq: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $12 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length12_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: movl $12, %edx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length12(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length12: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $12 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length12: +; X64: # BB#0: +; X64-NEXT: movl $12, %edx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 12) nounwind + ret i32 %m +} + +; PR33329 - https://bugs.llvm.org/show_bug.cgi?id=33329 + +define i32 @length16(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length16: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $16 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length16: +; X64: # BB#0: +; X64-NEXT: movl $16, %edx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 16) nounwind + ret i32 %m +} + +define i1 @length16_eq(i8* %x, i8* %y) nounwind optsize { +; X86-NOSSE-LABEL: length16_eq: +; X86-NOSSE: # BB#0: +; X86-NOSSE-NEXT: pushl $0 +; X86-NOSSE-NEXT: pushl $16 +; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: calll memcmp +; X86-NOSSE-NEXT: addl $16, %esp +; X86-NOSSE-NEXT: testl %eax, %eax +; X86-NOSSE-NEXT: setne %al +; X86-NOSSE-NEXT: retl +; +; X86-SSE2-LABEL: length16_eq: +; X86-SSE2: # BB#0: +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X86-SSE2-NEXT: movdqu (%ecx), %xmm0 +; X86-SSE2-NEXT: movdqu (%eax), %xmm1 +; X86-SSE2-NEXT: pcmpeqb %xmm0, %xmm1 +; X86-SSE2-NEXT: pmovmskb %xmm1, %eax +; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X86-SSE2-NEXT: setne %al +; X86-SSE2-NEXT: retl +; +; X64-SSE2-LABEL: length16_eq: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: movdqu (%rsi), %xmm0 +; X64-SSE2-NEXT: movdqu (%rdi), %xmm1 +; X64-SSE2-NEXT: pcmpeqb %xmm0, %xmm1 +; X64-SSE2-NEXT: pmovmskb %xmm1, %eax +; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-SSE2-NEXT: setne %al +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length16_eq: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %xmm0 +; X64-AVX2-NEXT: vpcmpeqb (%rsi), %xmm0, %xmm0 +; X64-AVX2-NEXT: vpmovmskb %xmm0, %eax +; X64-AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-AVX2-NEXT: setne %al +; X64-AVX2-NEXT: retq + %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) nounwind + %cmp = icmp ne i32 %call, 0 + ret i1 %cmp +} + +define i1 @length16_eq_const(i8* %X) nounwind optsize { +; X86-NOSSE-LABEL: length16_eq_const: +; X86-NOSSE: # BB#0: +; X86-NOSSE-NEXT: pushl $0 +; X86-NOSSE-NEXT: pushl $16 +; X86-NOSSE-NEXT: pushl $.L.str +; X86-NOSSE-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NOSSE-NEXT: calll memcmp +; X86-NOSSE-NEXT: addl $16, %esp +; X86-NOSSE-NEXT: testl %eax, %eax +; X86-NOSSE-NEXT: sete %al +; X86-NOSSE-NEXT: retl +; +; X86-SSE2-LABEL: length16_eq_const: +; X86-SSE2: # BB#0: +; X86-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X86-SSE2-NEXT: movdqu (%eax), %xmm0 +; X86-SSE2-NEXT: pcmpeqb {{\.LCPI.*}}, %xmm0 +; X86-SSE2-NEXT: pmovmskb %xmm0, %eax +; X86-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X86-SSE2-NEXT: sete %al +; X86-SSE2-NEXT: retl +; +; X64-SSE2-LABEL: length16_eq_const: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: movdqu (%rdi), %xmm0 +; X64-SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm0 +; X64-SSE2-NEXT: pmovmskb %xmm0, %eax +; X64-SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-SSE2-NEXT: sete %al +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length16_eq_const: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %xmm0 +; X64-AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %xmm0, %xmm0 +; X64-AVX2-NEXT: vpmovmskb %xmm0, %eax +; X64-AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF +; X64-AVX2-NEXT: sete %al +; X64-AVX2-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 16) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + +define i32 @length32(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length32: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $32 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length32: +; X64: # BB#0: +; X64-NEXT: movl $32, %edx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 32) nounwind + ret i32 %m +} + +; PR33325 - https://bugs.llvm.org/show_bug.cgi?id=33325 + +define i1 @length32_eq(i8* %x, i8* %y) nounwind optsize { +; X86-LABEL: length32_eq: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $32 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-SSE2-LABEL: length32_eq: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: pushq %rax +; X64-SSE2-NEXT: movl $32, %edx +; X64-SSE2-NEXT: callq memcmp +; X64-SSE2-NEXT: testl %eax, %eax +; X64-SSE2-NEXT: sete %al +; X64-SSE2-NEXT: popq %rcx +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length32_eq: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 +; X64-AVX2-NEXT: vpcmpeqb (%rsi), %ymm0, %ymm0 +; X64-AVX2-NEXT: vpmovmskb %ymm0, %eax +; X64-AVX2-NEXT: cmpl $-1, %eax +; X64-AVX2-NEXT: sete %al +; X64-AVX2-NEXT: vzeroupper +; X64-AVX2-NEXT: retq + %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 32) nounwind + %cmp = icmp eq i32 %call, 0 + ret i1 %cmp +} + +define i1 @length32_eq_const(i8* %X) nounwind optsize { +; X86-LABEL: length32_eq_const: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $32 +; X86-NEXT: pushl $.L.str +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-SSE2-LABEL: length32_eq_const: +; X64-SSE2: # BB#0: +; X64-SSE2-NEXT: pushq %rax +; X64-SSE2-NEXT: movl $.L.str, %esi +; X64-SSE2-NEXT: movl $32, %edx +; X64-SSE2-NEXT: callq memcmp +; X64-SSE2-NEXT: testl %eax, %eax +; X64-SSE2-NEXT: setne %al +; X64-SSE2-NEXT: popq %rcx +; X64-SSE2-NEXT: retq +; +; X64-AVX2-LABEL: length32_eq_const: +; X64-AVX2: # BB#0: +; X64-AVX2-NEXT: vmovdqu (%rdi), %ymm0 +; X64-AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %ymm0, %ymm0 +; X64-AVX2-NEXT: vpmovmskb %ymm0, %eax +; X64-AVX2-NEXT: cmpl $-1, %eax +; X64-AVX2-NEXT: setne %al +; X64-AVX2-NEXT: vzeroupper +; X64-AVX2-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 32) nounwind + %c = icmp ne i32 %m, 0 + ret i1 %c +} + +define i32 @length64(i8* %X, i8* %Y) nounwind optsize { +; X86-LABEL: length64: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $64 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: retl +; +; X64-LABEL: length64: +; X64: # BB#0: +; X64-NEXT: movl $64, %edx +; X64-NEXT: jmp memcmp # TAILCALL + %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 64) nounwind + ret i32 %m +} + +define i1 @length64_eq(i8* %x, i8* %y) nounwind optsize { +; X86-LABEL: length64_eq: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $64 +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: setne %al +; X86-NEXT: retl +; +; X64-LABEL: length64_eq: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: movl $64, %edx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: setne %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 64) nounwind + %cmp = icmp ne i32 %call, 0 + ret i1 %cmp +} + +define i1 @length64_eq_const(i8* %X) nounwind optsize { +; X86-LABEL: length64_eq_const: +; X86: # BB#0: +; X86-NEXT: pushl $0 +; X86-NEXT: pushl $64 +; X86-NEXT: pushl $.L.str +; X86-NEXT: pushl {{[0-9]+}}(%esp) +; X86-NEXT: calll memcmp +; X86-NEXT: addl $16, %esp +; X86-NEXT: testl %eax, %eax +; X86-NEXT: sete %al +; X86-NEXT: retl +; +; X64-LABEL: length64_eq_const: +; X64: # BB#0: +; X64-NEXT: pushq %rax +; X64-NEXT: movl $.L.str, %esi +; X64-NEXT: movl $64, %edx +; X64-NEXT: callq memcmp +; X64-NEXT: testl %eax, %eax +; X64-NEXT: sete %al +; X64-NEXT: popq %rcx +; X64-NEXT: retq + %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 64) nounwind + %c = icmp eq i32 %m, 0 + ret i1 %c +} + -- 2.11.0