[X86][RDRAND] Add rdrand scheduling tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320039 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/rdrand-schedule.ll b/test/CodeGen/X86/rdrand-schedule.ll
new file mode 100644 (file)
index 0000000..0eda632
--- /dev/null
+++ b/test/CodeGen/X86/rdrand-schedule.ll
@@ -0,0 +1,148 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=x86-64 -mattr=+rdrnd | FileCheck %s --check-prefix=CHECK --check-prefix=GENERIC
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=goldmont | FileCheck %s --check-prefix=CHECK --check-prefix=GOLDMONT
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=ivybridge | FileCheck %s --check-prefix=CHECK --check-prefix=IVY
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=haswell | FileCheck %s --check-prefix=CHECK --check-prefix=HASWELL
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=broadwell | FileCheck %s --check-prefix=CHECK --check-prefix=BROADWELL
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=skylake | FileCheck %s --check-prefix=CHECK --check-prefix=SKYLAKE
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=skx | FileCheck %s --check-prefix=CHECK --check-prefix=SKX
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=znver1 | FileCheck %s --check-prefix=CHECK --check-prefix=ZNVER1
+
+declare {i16, i32} @llvm.x86.rdrand.16()
+declare {i32, i32} @llvm.x86.rdrand.32()
+declare {i64, i32} @llvm.x86.rdrand.64()
+
+define i16 @test_rdrand_16(i16* %random_val) {
+; GENERIC-LABEL: test_rdrand_16:
+; GENERIC:       # %bb.0:
+; GENERIC-NEXT:    rdrandw %ax
+; GENERIC-NEXT:    retq # sched: [1:1.00]
+;
+; GOLDMONT-LABEL: test_rdrand_16:
+; GOLDMONT:       # %bb.0:
+; GOLDMONT-NEXT:    rdrandw %ax
+; GOLDMONT-NEXT:    retq # sched: [4:1.00]
+;
+; IVY-LABEL: test_rdrand_16:
+; IVY:       # %bb.0:
+; IVY-NEXT:    rdrandw %ax
+; IVY-NEXT:    retq # sched: [1:1.00]
+;
+; HASWELL-LABEL: test_rdrand_16:
+; HASWELL:       # %bb.0:
+; HASWELL-NEXT:    rdrandw %ax # sched: [1:5.33]
+; HASWELL-NEXT:    retq # sched: [2:1.00]
+;
+; BROADWELL-LABEL: test_rdrand_16:
+; BROADWELL:       # %bb.0:
+; BROADWELL-NEXT:    rdrandw %ax # sched: [9:1.00]
+; BROADWELL-NEXT:    retq # sched: [7:1.00]
+;
+; SKYLAKE-LABEL: test_rdrand_16:
+; SKYLAKE:       # %bb.0:
+; SKYLAKE-NEXT:    rdrandw %ax
+; SKYLAKE-NEXT:    retq # sched: [7:1.00]
+;
+; SKX-LABEL: test_rdrand_16:
+; SKX:       # %bb.0:
+; SKX-NEXT:    rdrandw %ax
+; SKX-NEXT:    retq # sched: [7:1.00]
+;
+; ZNVER1-LABEL: test_rdrand_16:
+; ZNVER1:       # %bb.0:
+; ZNVER1-NEXT:    rdrandw %ax # sched: [100:?]
+; ZNVER1-NEXT:    retq # sched: [1:0.50]
+  %call = call {i16, i32} @llvm.x86.rdrand.16()
+  %randval = extractvalue {i16, i32} %call, 0
+  ret i16 %randval
+}
+
+define i32 @test_rdrand_32(i32* %random_val) {
+; GENERIC-LABEL: test_rdrand_32:
+; GENERIC:       # %bb.0:
+; GENERIC-NEXT:    rdrandl %eax
+; GENERIC-NEXT:    retq # sched: [1:1.00]
+;
+; GOLDMONT-LABEL: test_rdrand_32:
+; GOLDMONT:       # %bb.0:
+; GOLDMONT-NEXT:    rdrandl %eax
+; GOLDMONT-NEXT:    retq # sched: [4:1.00]
+;
+; IVY-LABEL: test_rdrand_32:
+; IVY:       # %bb.0:
+; IVY-NEXT:    rdrandl %eax
+; IVY-NEXT:    retq # sched: [1:1.00]
+;
+; HASWELL-LABEL: test_rdrand_32:
+; HASWELL:       # %bb.0:
+; HASWELL-NEXT:    rdrandl %eax # sched: [1:5.33]
+; HASWELL-NEXT:    retq # sched: [2:1.00]
+;
+; BROADWELL-LABEL: test_rdrand_32:
+; BROADWELL:       # %bb.0:
+; BROADWELL-NEXT:    rdrandl %eax # sched: [9:1.00]
+; BROADWELL-NEXT:    retq # sched: [7:1.00]
+;
+; SKYLAKE-LABEL: test_rdrand_32:
+; SKYLAKE:       # %bb.0:
+; SKYLAKE-NEXT:    rdrandl %eax
+; SKYLAKE-NEXT:    retq # sched: [7:1.00]
+;
+; SKX-LABEL: test_rdrand_32:
+; SKX:       # %bb.0:
+; SKX-NEXT:    rdrandl %eax
+; SKX-NEXT:    retq # sched: [7:1.00]
+;
+; ZNVER1-LABEL: test_rdrand_32:
+; ZNVER1:       # %bb.0:
+; ZNVER1-NEXT:    rdrandl %eax # sched: [100:?]
+; ZNVER1-NEXT:    retq # sched: [1:0.50]
+  %call = call {i32, i32} @llvm.x86.rdrand.32()
+  %randval = extractvalue {i32, i32} %call, 0
+  ret i32 %randval
+}
+
+define i64 @test_rdrand_64(i64* %random_val) {
+; GENERIC-LABEL: test_rdrand_64:
+; GENERIC:       # %bb.0:
+; GENERIC-NEXT:    rdrandq %rax
+; GENERIC-NEXT:    retq # sched: [1:1.00]
+;
+; GOLDMONT-LABEL: test_rdrand_64:
+; GOLDMONT:       # %bb.0:
+; GOLDMONT-NEXT:    rdrandq %rax
+; GOLDMONT-NEXT:    retq # sched: [4:1.00]
+;
+; IVY-LABEL: test_rdrand_64:
+; IVY:       # %bb.0:
+; IVY-NEXT:    rdrandq %rax
+; IVY-NEXT:    retq # sched: [1:1.00]
+;
+; HASWELL-LABEL: test_rdrand_64:
+; HASWELL:       # %bb.0:
+; HASWELL-NEXT:    rdrandq %rax # sched: [1:5.33]
+; HASWELL-NEXT:    retq # sched: [2:1.00]
+;
+; BROADWELL-LABEL: test_rdrand_64:
+; BROADWELL:       # %bb.0:
+; BROADWELL-NEXT:    rdrandq %rax # sched: [9:1.00]
+; BROADWELL-NEXT:    retq # sched: [7:1.00]
+;
+; SKYLAKE-LABEL: test_rdrand_64:
+; SKYLAKE:       # %bb.0:
+; SKYLAKE-NEXT:    rdrandq %rax
+; SKYLAKE-NEXT:    retq # sched: [7:1.00]
+;
+; SKX-LABEL: test_rdrand_64:
+; SKX:       # %bb.0:
+; SKX-NEXT:    rdrandq %rax
+; SKX-NEXT:    retq # sched: [7:1.00]
+;
+; ZNVER1-LABEL: test_rdrand_64:
+; ZNVER1:       # %bb.0:
+; ZNVER1-NEXT:    rdrandq %rax # sched: [100:?]
+; ZNVER1-NEXT:    retq # sched: [1:0.50]
+  %call = call {i64, i32} @llvm.x86.rdrand.64()
+  %randval = extractvalue {i64, i32} %call, 0
+  ret i64 %randval
+}