[X86][RDRAND] Split off i64 intrinsic tests and test i16/i32 on 32-bit target as...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306960 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/rdrand-x86_64.ll b/test/CodeGen/X86/rdrand-x86_64.ll
new file mode 100644 (file)
index 0000000..06f1136
--- /dev/null
+++ b/test/CodeGen/X86/rdrand-x86_64.ll
@@ -0,0 +1,19 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=core-avx-i -mattr=+rdrnd | FileCheck %s
+
+declare {i64, i32} @llvm.x86.rdrand.64()
+
+define i32 @_rdrand64_step(i64* %random_val) {
+; CHECK-LABEL: _rdrand64_step:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    rdrandq %rcx
+; CHECK-NEXT:    movl $1, %eax
+; CHECK-NEXT:    cmovael %ecx, %eax
+; CHECK-NEXT:    movq %rcx, (%rdi)
+; CHECK-NEXT:    retq
+  %call = call {i64, i32} @llvm.x86.rdrand.64()
+  %randval = extractvalue {i64, i32} %call, 0
+  store i64 %randval, i64* %random_val
+  %isvalid = extractvalue {i64, i32} %call, 1
+  ret i32 %isvalid
+}

diff --git a/test/CodeGen/X86/rdrand.ll b/test/CodeGen/X86/rdrand.ll
index 107cde0..0638e00 100644 (file)
--- a/test/CodeGen/X86/rdrand.ll
+++ b/test/CodeGen/X86/rdrand.ll
@@ -1,66 +1,117 @@
-; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=core-avx-i -mattr=+rdrnd | FileCheck %s
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=core-avx-i -mattr=+rdrnd | FileCheck %s --check-prefix=X86
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=core-avx-i -mattr=+rdrnd | FileCheck %s --check-prefix=X64
+
 declare {i16, i32} @llvm.x86.rdrand.16()
 declare {i32, i32} @llvm.x86.rdrand.32()
-declare {i64, i32} @llvm.x86.rdrand.64()
 
 define i32 @_rdrand16_step(i16* %random_val) {
+; X86-LABEL: _rdrand16_step:
+; X86:       # BB#0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    rdrandw %ax
+; X86-NEXT:    movzwl %ax, %edx
+; X86-NEXT:    movl $1, %eax
+; X86-NEXT:    cmovael %edx, %eax
+; X86-NEXT:    movw %dx, (%ecx)
+; X86-NEXT:    retl
+;
+; X64-LABEL: _rdrand16_step:
+; X64:       # BB#0:
+; X64-NEXT:    rdrandw %ax
+; X64-NEXT:    movzwl %ax, %ecx
+; X64-NEXT:    movl $1, %eax
+; X64-NEXT:    cmovael %ecx, %eax
+; X64-NEXT:    movw %cx, (%rdi)
+; X64-NEXT:    retq
   %call = call {i16, i32} @llvm.x86.rdrand.16()
   %randval = extractvalue {i16, i32} %call, 0
   store i16 %randval, i16* %random_val
   %isvalid = extractvalue {i16, i32} %call, 1
   ret i32 %isvalid
-; CHECK-LABEL: _rdrand16_step:
-; CHECK: rdrandw       %ax
-; CHECK: movzwl        %ax, %ecx
-; CHECK: movl  $1, %eax
-; CHECK: cmovael       %ecx, %eax
-; CHECK: movw  %cx, (%r[[A0:di|cx]])
-; CHECK: ret
 }
 
 define i32 @_rdrand32_step(i32* %random_val) {
+; X86-LABEL: _rdrand32_step:
+; X86:       # BB#0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    rdrandl %edx
+; X86-NEXT:    movl $1, %eax
+; X86-NEXT:    cmovael %edx, %eax
+; X86-NEXT:    movl %edx, (%ecx)
+; X86-NEXT:    retl
+;
+; X64-LABEL: _rdrand32_step:
+; X64:       # BB#0:
+; X64-NEXT:    rdrandl %ecx
+; X64-NEXT:    movl $1, %eax
+; X64-NEXT:    cmovael %ecx, %eax
+; X64-NEXT:    movl %ecx, (%rdi)
+; X64-NEXT:    retq
   %call = call {i32, i32} @llvm.x86.rdrand.32()
   %randval = extractvalue {i32, i32} %call, 0
   store i32 %randval, i32* %random_val
   %isvalid = extractvalue {i32, i32} %call, 1
   ret i32 %isvalid
-; CHECK-LABEL: _rdrand32_step:
-; CHECK: rdrandl       %e[[T0:[a-z]+]]
-; CHECK: movl  $1, %eax
-; CHECK: cmovael       %e[[T0]], %eax
-; CHECK: movl  %e[[T0]], (%r[[A0]])
-; CHECK: ret
-}
-
-define i32 @_rdrand64_step(i64* %random_val) {
-  %call = call {i64, i32} @llvm.x86.rdrand.64()
-  %randval = extractvalue {i64, i32} %call, 0
-  store i64 %randval, i64* %random_val
-  %isvalid = extractvalue {i64, i32} %call, 1
-  ret i32 %isvalid
-; CHECK-LABEL: _rdrand64_step:
-; CHECK: rdrandq       %r[[T1:[a-z]+]]
-; CHECK: movl  $1, %eax
-; CHECK: cmovael       %e[[T1]], %eax
-; CHECK: movq  %r[[T1]], (%r[[A0]])
-; CHECK: ret
 }
 
 ; Check that MachineCSE doesn't eliminate duplicate rdrand instructions.
 define i32 @CSE() nounwind {
+; X86-LABEL: CSE:
+; X86:       # BB#0:
+; X86-NEXT:    rdrandl %ecx
+; X86-NEXT:    rdrandl %eax
+; X86-NEXT:    addl %ecx, %eax
+; X86-NEXT:    retl
+;
+; X64-LABEL: CSE:
+; X64:       # BB#0:
+; X64-NEXT:    rdrandl %ecx
+; X64-NEXT:    rdrandl %eax
+; X64-NEXT:    addl %ecx, %eax
+; X64-NEXT:    retq
  %rand1 = tail call { i32, i32 } @llvm.x86.rdrand.32() nounwind
  %v1 = extractvalue { i32, i32 } %rand1, 0
  %rand2 = tail call { i32, i32 } @llvm.x86.rdrand.32() nounwind
  %v2 = extractvalue { i32, i32 } %rand2, 0
  %add = add i32 %v2, %v1
  ret i32 %add
-; CHECK-LABEL: CSE:
-; CHECK: rdrandl
-; CHECK: rdrandl
 }
 
 ; Check that MachineLICM doesn't hoist rdrand instructions.
 define void @loop(i32* %p, i32 %n) nounwind {
+; X86-LABEL: loop:
+; X86:       # BB#0: # %entry
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    testl %eax, %eax
+; X86-NEXT:    je .LBB3_3
+; X86-NEXT:  # BB#1: # %while.body.preheader
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    .p2align 4, 0x90
+; X86-NEXT:  .LBB3_2: # %while.body
+; X86-NEXT:    # =>This Inner Loop Header: Depth=1
+; X86-NEXT:    rdrandl %edx
+; X86-NEXT:    movl %edx, (%ecx)
+; X86-NEXT:    leal 4(%ecx), %ecx
+; X86-NEXT:    decl %eax
+; X86-NEXT:    jne .LBB3_2
+; X86-NEXT:  .LBB3_3: # %while.end
+; X86-NEXT:    retl
+;
+; X64-LABEL: loop:
+; X64:       # BB#0: # %entry
+; X64-NEXT:    testl %esi, %esi
+; X64-NEXT:    je .LBB3_2
+; X64-NEXT:    .p2align 4, 0x90
+; X64-NEXT:  .LBB3_1: # %while.body
+; X64-NEXT:    # =>This Inner Loop Header: Depth=1
+; X64-NEXT:    rdrandl %eax
+; X64-NEXT:    movl %eax, (%rdi)
+; X64-NEXT:    leaq 4(%rdi), %rdi
+; X64-NEXT:    decl %esi
+; X64-NEXT:    jne .LBB3_1
+; X64-NEXT:  .LBB3_2: # %while.end
+; X64-NEXT:    retq
 entry:
   %tobool1 = icmp eq i32 %n, 0
   br i1 %tobool1, label %while.end, label %while.body
@@ -78,8 +129,4 @@ while.body:                                       ; preds = %entry, %while.body
 
 while.end:                                        ; preds = %while.body, %entry
   ret void
-; CHECK-LABEL: loop:
-; CHECK-NOT: rdrandl
-; CHECK: This Inner Loop Header: Depth=1
-; CHECK: rdrandl
 }