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| author | Igor Breger <igor.breger@intel.com> | 2016-06-06 12:24:52 +0000 |
|---|---|---|
| committer | Igor Breger <igor.breger@intel.com> | 2016-06-06 12:24:52 +0000 |
| commit | edafb0595ef73ca18eb4a97f0feed31c49faccec (patch) | |
| tree | a380399b87f772eb5af08b8f6eab7509920fb539 /llvm/test | |
| parent | 1a6b0f7f078818e3b8780c7dfe5eec3f488ff99d (diff) | |
| download | bcm5719-llvm-edafb0595ef73ca18eb4a97f0feed31c49faccec.tar.gz bcm5719-llvm-edafb0595ef73ca18eb4a97f0feed31c49faccec.zip | |
[KNL] Fix UMULO lowering.
Differential Revision: http://reviews.llvm.org/D21013
llvm-svn: 271891
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/xaluo.ll | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/llvm/test/CodeGen/X86/xaluo.ll b/llvm/test/CodeGen/X86/xaluo.ll index b24c43a3d0d..76e00a0993d 100644 --- a/llvm/test/CodeGen/X86/xaluo.ll +++ b/llvm/test/CodeGen/X86/xaluo.ll @@ -1,6 +1,6 @@ ; RUN: llc -mtriple=x86_64-darwin-unknown < %s | FileCheck %s --check-prefix=CHECK --check-prefix=SDAG ; RUN: llc -mtriple=x86_64-darwin-unknown -fast-isel -fast-isel-abort=1 < %s | FileCheck %s --check-prefix=CHECK --check-prefix=FAST - +; RUN: llc -mtriple=x86_64-darwin-unknown -mcpu=knl < %s | FileCheck %s --check-prefix=KNL ; ; Get the actual value of the overflow bit. ; @@ -734,6 +734,25 @@ continue: ret i1 true } +define i1 @bug27873(i64 %c1, i1 %c2) { +; KNL-LABEL: bug27873: +; KNL: ## BB#0: +; KNL-NEXT: andl $1, %esi +; KNL-NEXT: movl $160, %ecx +; KNL-NEXT: movq %rdi, %rax +; KNL-NEXT: mulq %rcx +; KNL-NEXT: kmovw %esi, %k0 +; KNL-NEXT: seto %al +; KNL-NEXT: kmovw %eax, %k1 +; KNL-NEXT: korw %k1, %k0, %k0 +; KNL-NEXT: kmovw %k0, %eax +; KNL-NEXT: retq + %mul = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %c1, i64 160) + %mul.overflow = extractvalue { i64, i1 } %mul, 1 + %x1 = or i1 %c2, %mul.overflow + ret i1 %x1 +} + declare {i8, i1} @llvm.sadd.with.overflow.i8 (i8, i8 ) nounwind readnone declare {i16, i1} @llvm.sadd.with.overflow.i16(i16, i16) nounwind readnone declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32) nounwind readnone |
