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[msan] Fix vector pack intrinsic handling.

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This fixes a crash on MMX intrinsics, as well as a corner case in handling of
all unsigned pack intrinsics.

PR19953.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210454 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evgeniy Stepanov
2014-06-09 08:40:16 +00:00
parent 6959336f6e
commit 544c895d71
2 changed files with 96 additions and 10 deletions
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24
test/Instrumentation/MemorySanitizer/vector_pack.ll
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@@ -5,6 +5,7 @@ target triple = "x86_64-unknown-linux-gnu"
declare <8 x i16> @llvm.x86.sse2.packssdw.128(<4 x i32>, <4 x i32>) nounwind readnone
declare <32 x i8> @llvm.x86.avx2.packuswb(<16 x i16> %a, <16 x i16> %b) nounwind readnone
declare x86_mmx @llvm.x86.mmx.packuswb(x86_mmx, x86_mmx) nounwind readnone
define <8 x i16> @Test_packssdw_128(<4 x i32> %a, <4 x i32> %b) sanitize_memory {
entry:
@@ -33,6 +34,27 @@ entry:
; CHECK-DAG: sext <16 x i1> {{.*}} to <16 x i16>
; CHECK-DAG: icmp ne <16 x i16> {{.*}}, zeroinitializer
; CHECK-DAG: sext <16 x i1> {{.*}} to <16 x i16>
; CHECK-DAG: call <32 x i8> @llvm.x86.avx2.packuswb(
; CHECK-DAG: call <32 x i8> @llvm.x86.avx2.packsswb(
; CHECK-DAG: call <32 x i8> @llvm.x86.avx2.packuswb(
; CHECK: ret <32 x i8>
define x86_mmx @Test_mmx_packuswb(x86_mmx %a, x86_mmx %b) sanitize_memory {
entry:
%c = tail call x86_mmx @llvm.x86.mmx.packuswb(x86_mmx %a, x86_mmx %b) nounwind
ret x86_mmx %c
}
; CHECK-LABEL: @Test_mmx_packuswb(
; CHECK-DAG: bitcast i64 {{.*}} to <4 x i16>
; CHECK-DAG: bitcast i64 {{.*}} to <4 x i16>
; CHECK-DAG: icmp ne <4 x i16> {{.*}}, zeroinitializer
; CHECK-DAG: sext <4 x i1> {{.*}} to <4 x i16>
; CHECK-DAG: icmp ne <4 x i16> {{.*}}, zeroinitializer
; CHECK-DAG: sext <4 x i1> {{.*}} to <4 x i16>
; CHECK-DAG: bitcast <4 x i16> {{.*}} to x86_mmx
; CHECK-DAG: bitcast <4 x i16> {{.*}} to x86_mmx
; CHECK-DAG: call x86_mmx @llvm.x86.mmx.packsswb({{.*}}
; CHECK-DAG: bitcast x86_mmx {{.*}} to i64
; CHECK-DAG: call x86_mmx @llvm.x86.mmx.packuswb({{.*}}
; CHECK: ret x86_mmx