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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-01-28 11:42:28 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-01-28 11:42:28 +0000 |
| commit | 6f85ef300d76ff766d639e0a932e8a747e7617e1 (patch) | |
| tree | 20e35dd1b03f47cbee30686fb39d7238fd73ca9a /llvm/test | |
| parent | 7eda134fa7733e84424359c6ac23cd4ce1045435 (diff) | |
| download | bcm5719-llvm-6f85ef300d76ff766d639e0a932e8a747e7617e1.tar.gz bcm5719-llvm-6f85ef300d76ff766d639e0a932e8a747e7617e1.zip | |
[msan] Mostly disable msan-handle-icmp-exact.
It is way too slow. Change the default option value to 0.
Always do exact shadow propagation for unsigned ICmp with constants, it is
cheap (under 1% cpu time) and required for correctness.
llvm-svn: 173682
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll b/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll index 16453c5255f..60f946fbd55 100644 --- a/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll +++ b/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll @@ -323,8 +323,6 @@ define zeroext i1 @ICmpSLT(i32 %x) nounwind uwtable readnone { ; CHECK-NOT: call void @__msan_warning ; CHECK: icmp slt ; CHECK-NOT: call void @__msan_warning -; CHECK: icmp slt -; CHECK-NOT: call void @__msan_warning ; CHECK: ret i1 define zeroext i1 @ICmpSGE(i32 %x) nounwind uwtable readnone { @@ -333,9 +331,7 @@ define zeroext i1 @ICmpSGE(i32 %x) nounwind uwtable readnone { } ; CHECK: @ICmpSGE -; CHECK: icmp sge -; CHECK-NOT: call void @__msan_warning -; CHECK: icmp sge +; CHECK: icmp slt ; CHECK-NOT: call void @__msan_warning ; CHECK: icmp sge ; CHECK-NOT: call void @__msan_warning @@ -347,9 +343,7 @@ define zeroext i1 @ICmpSGT(i32 %x) nounwind uwtable readnone { } ; CHECK: @ICmpSGT -; CHECK: icmp sgt -; CHECK-NOT: call void @__msan_warning -; CHECK: icmp sgt +; CHECK: icmp slt ; CHECK-NOT: call void @__msan_warning ; CHECK: icmp sgt ; CHECK-NOT: call void @__msan_warning @@ -361,9 +355,7 @@ define zeroext i1 @ICmpSLE(i32 %x) nounwind uwtable readnone { } ; CHECK: @ICmpSLE -; CHECK: icmp sle -; CHECK-NOT: call void @__msan_warning -; CHECK: icmp sle +; CHECK: icmp slt ; CHECK-NOT: call void @__msan_warning ; CHECK: icmp sle ; CHECK-NOT: call void @__msan_warning @@ -381,27 +373,26 @@ define <2 x i1> @ICmpSLT_vector(<2 x i32*> %x) nounwind uwtable readnone { ; CHECK: @ICmpSLT_vector ; CHECK: icmp slt <2 x i64> ; CHECK-NOT: call void @__msan_warning -; CHECK: icmp slt <2 x i64> -; CHECK-NOT: call void @__msan_warning ; CHECK: icmp slt <2 x i32*> ; CHECK-NOT: call void @__msan_warning ; CHECK: ret <2 x i1> -; Check that we propagate shadow for arbitrary relational comparisons +; Check that we propagate shadow for unsigned relational comparisons with +; constants -define zeroext i1 @ICmpSLENonZero(i32 %x, i32 %y) nounwind uwtable readnone { +define zeroext i1 @ICmpUGTConst(i32 %x) nounwind uwtable readnone { entry: - %cmp = icmp sle i32 %x, %y + %cmp = icmp ugt i32 %x, 7 ret i1 %cmp } -; CHECK: @ICmpSLENonZero -; CHECK: icmp sle i32 +; CHECK: @ICmpUGTConst +; CHECK: icmp ugt i32 ; CHECK-NOT: call void @__msan_warning -; CHECK: icmp sle i32 +; CHECK: icmp ugt i32 ; CHECK-NOT: call void @__msan_warning -; CHECK: icmp sle i32 +; CHECK: icmp ugt i32 ; CHECK-NOT: call void @__msan_warning ; CHECK: ret i1 |
