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author | Stephen Hines <srhines@google.com> | 2014-04-23 16:57:46 -0700 |
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committer | Stephen Hines <srhines@google.com> | 2014-04-24 15:53:16 -0700 |
commit | 36b56886974eae4f9c5ebc96befd3e7bfe5de338 (patch) | |
tree | e6cfb69fbbd937f450eeb83bfb83b9da3b01275a /test/Instrumentation/MemorySanitizer/msan_basic.ll | |
parent | 69a8640022b04415ae9fac62f8ab090601d8f889 (diff) | |
download | external_llvm-36b56886974eae4f9c5ebc96befd3e7bfe5de338.zip external_llvm-36b56886974eae4f9c5ebc96befd3e7bfe5de338.tar.gz external_llvm-36b56886974eae4f9c5ebc96befd3e7bfe5de338.tar.bz2 |
Update to LLVM 3.5a.
Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617
Diffstat (limited to 'test/Instrumentation/MemorySanitizer/msan_basic.ll')
-rw-r--r-- | test/Instrumentation/MemorySanitizer/msan_basic.ll | 188 |
1 files changed, 106 insertions, 82 deletions
diff --git a/test/Instrumentation/MemorySanitizer/msan_basic.ll b/test/Instrumentation/MemorySanitizer/msan_basic.ll index 72a992d..6b71310 100644 --- a/test/Instrumentation/MemorySanitizer/msan_basic.ll +++ b/test/Instrumentation/MemorySanitizer/msan_basic.ll @@ -1,6 +1,5 @@ ; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s -; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck -check-prefix=CHECK-ORIGINS %s -; RUN: opt < %s -msan -msan-check-access-address=1 -S | FileCheck %s -check-prefix=CHECK-AA +; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS %s target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" @@ -32,20 +31,16 @@ entry: ; CHECK: @Store ; CHECK: load {{.*}} @__msan_param_tls +; CHECK-ORIGINS: load {{.*}} @__msan_param_origin_tls ; CHECK: store -; CHECK: store -; CHECK: ret void -; CHECK-ORIGINS: @Store -; CHECK-ORIGINS: load {{.*}} @__msan_param_tls -; CHECK-ORIGINS: store ; CHECK-ORIGINS: icmp ; CHECK-ORIGINS: br i1 ; CHECK-ORIGINS: <label> ; CHECK-ORIGINS: store ; CHECK-ORIGINS: br label ; CHECK-ORIGINS: <label> -; CHECK-ORIGINS: store -; CHECK-ORIGINS: ret void +; CHECK: store +; CHECK: ret void ; Check instrumentation of aligned stores @@ -60,20 +55,16 @@ entry: ; CHECK: @AlignedStore ; CHECK: load {{.*}} @__msan_param_tls +; CHECK-ORIGINS: load {{.*}} @__msan_param_origin_tls ; CHECK: store {{.*}} align 32 -; CHECK: store {{.*}} align 32 -; CHECK: ret void -; CHECK-ORIGINS: @AlignedStore -; CHECK-ORIGINS: load {{.*}} @__msan_param_tls -; CHECK-ORIGINS: store {{.*}} align 32 ; CHECK-ORIGINS: icmp ; CHECK-ORIGINS: br i1 ; CHECK-ORIGINS: <label> ; CHECK-ORIGINS: store {{.*}} align 32 ; CHECK-ORIGINS: br label ; CHECK-ORIGINS: <label> -; CHECK-ORIGINS: store {{.*}} align 32 -; CHECK-ORIGINS: ret void +; CHECK: store {{.*}} align 32 +; CHECK: ret void ; load followed by cmp: check that we load the shadow and call __msan_warning. @@ -251,18 +242,23 @@ declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, ; Check that we propagate shadow for "select" -define i32 @Select(i32 %a, i32 %b, i32 %c) nounwind uwtable readnone sanitize_memory { +define i32 @Select(i32 %a, i32 %b, i1 %c) nounwind uwtable readnone sanitize_memory { entry: - %tobool = icmp ne i32 %c, 0 - %cond = select i1 %tobool, i32 %a, i32 %b + %cond = select i1 %c, i32 %a, i32 %b ret i32 %cond } ; CHECK: @Select -; CHECK: select -; CHECK-NEXT: sext i1 {{.*}} to i32 -; CHECK-NEXT: or i32 -; CHECK-NEXT: select +; CHECK: select i1 +; CHECK-DAG: or i32 +; CHECK-DAG: xor i32 +; CHECK: or i32 +; CHECK-DAG: select i1 +; CHECK-ORIGINS-DAG: select +; CHECK-ORIGINS-DAG: select +; CHECK-DAG: select i1 +; CHECK: store i32{{.*}}@__msan_retval_tls +; CHECK-ORIGINS: store i32{{.*}}@__msan_retval_origin_tls ; CHECK: ret i32 @@ -278,17 +274,17 @@ entry: ; CHECK: @SelectVector ; CHECK: select <8 x i1> -; CHECK-NEXT: sext <8 x i1> {{.*}} to <8 x i16> -; CHECK-NEXT: or <8 x i16> -; CHECK-NEXT: select <8 x i1> +; CHECK-DAG: or <8 x i16> +; CHECK-DAG: xor <8 x i16> +; CHECK: or <8 x i16> +; CHECK-DAG: select <8 x i1> +; CHECK-ORIGINS-DAG: select +; CHECK-ORIGINS-DAG: select +; CHECK-DAG: select <8 x i1> +; CHECK: store <8 x i16>{{.*}}@__msan_retval_tls +; CHECK-ORIGINS: store i32{{.*}}@__msan_retval_origin_tls ; CHECK: ret <8 x i16> -; CHECK-ORIGINS: @SelectVector -; CHECK-ORIGINS: bitcast <8 x i1> {{.*}} to i8 -; CHECK-ORIGINS: icmp ne i8 -; CHECK-ORIGINS: select i1 -; CHECK-ORIGINS: ret <8 x i16> - ; Check that we propagate origin for "select" with scalar condition and vector ; arguments. Select condition shadow is sign-extended to the vector type and @@ -302,10 +298,13 @@ entry: ; CHECK: @SelectVector2 ; CHECK: select i1 -; CHECK: sext i1 {{.*}} to i128 -; CHECK: bitcast i128 {{.*}} to <8 x i16> +; CHECK-DAG: or <8 x i16> +; CHECK-DAG: xor <8 x i16> ; CHECK: or <8 x i16> -; CHECK: select i1 +; CHECK-DAG: select i1 +; CHECK-ORIGINS-DAG: select i1 +; CHECK-ORIGINS-DAG: select i1 +; CHECK-DAG: select i1 ; CHECK: ret <8 x i16> @@ -318,10 +317,27 @@ entry: ; CHECK: @SelectStruct ; CHECK: select i1 {{.*}}, { i64, i64 } ; CHECK-NEXT: select i1 {{.*}}, { i64, i64 } { i64 -1, i64 -1 }, { i64, i64 } +; CHECK-ORIGINS: select i1 +; CHECK-ORIGINS: select i1 ; CHECK-NEXT: select i1 {{.*}}, { i64, i64 } ; CHECK: ret { i64, i64 } +define { i64*, double } @SelectStruct2(i1 zeroext %x, { i64*, double } %a, { i64*, double } %b) readnone sanitize_memory { +entry: + %c = select i1 %x, { i64*, double } %a, { i64*, double } %b + ret { i64*, double } %c +} + +; CHECK: @SelectStruct2 +; CHECK: select i1 {{.*}}, { i64, i64 } +; CHECK-NEXT: select i1 {{.*}}, { i64, i64 } { i64 -1, i64 -1 }, { i64, i64 } +; CHECK-ORIGINS: select i1 +; CHECK-ORIGINS: select i1 +; CHECK-NEXT: select i1 {{.*}}, { i64*, double } +; CHECK: ret { i64*, double } + + define i8* @IntToPtr(i64 %x) nounwind uwtable readnone sanitize_memory { entry: %0 = inttoptr i64 %x to i8* @@ -330,9 +346,10 @@ entry: ; CHECK: @IntToPtr ; CHECK: load i64*{{.*}}__msan_param_tls +; CHECK-ORIGINS-NEXT: load i32*{{.*}}__msan_param_origin_tls ; CHECK-NEXT: inttoptr ; CHECK-NEXT: store i64{{.*}}__msan_retval_tls -; CHECK: ret i8 +; CHECK: ret i8* define i8* @IntToPtr_ZExt(i16 %x) nounwind uwtable readnone sanitize_memory { @@ -342,9 +359,11 @@ entry: } ; CHECK: @IntToPtr_ZExt +; CHECK: load i16*{{.*}}__msan_param_tls ; CHECK: zext ; CHECK-NEXT: inttoptr -; CHECK: ret i8 +; CHECK-NEXT: store i64{{.*}}__msan_retval_tls +; CHECK: ret i8* ; Check that we insert exactly one check on udiv @@ -474,13 +493,8 @@ define i32 @ShadowLoadAlignmentSmall() nounwind uwtable sanitize_memory { ; CHECK: @ShadowLoadAlignmentSmall ; CHECK: load volatile i32* {{.*}} align 2 ; CHECK: load i32* {{.*}} align 2 -; CHECK: ret i32 - -; CHECK-ORIGINS: @ShadowLoadAlignmentSmall -; CHECK-ORIGINS: load volatile i32* {{.*}} align 2 -; CHECK-ORIGINS: load i32* {{.*}} align 2 ; CHECK-ORIGINS: load i32* {{.*}} align 4 -; CHECK-ORIGINS: ret i32 +; CHECK: ret i32 ; Test vector manipulation instructions. @@ -567,17 +581,13 @@ declare <16 x i8> @llvm.x86.sse3.ldu.dq(i8* %p) nounwind ; CHECK: @LoadIntrinsic ; CHECK: load <16 x i8>* {{.*}} align 1 +; CHECK-ORIGINS: [[ORIGIN:%[01-9a-z]+]] = load i32* {{.*}} ; CHECK-NOT: br ; CHECK-NOT: = or ; CHECK: call <16 x i8> @llvm.x86.sse3.ldu.dq ; CHECK: store <16 x i8> {{.*}} @__msan_retval_tls -; CHECK: ret <16 x i8> - -; CHECK-ORIGINS: @LoadIntrinsic -; CHECK-ORIGINS: [[ORIGIN:%[01-9a-z]+]] = load i32* {{.*}} -; CHECK-ORIGINS: call <16 x i8> @llvm.x86.sse3.ldu.dq ; CHECK-ORIGINS: store i32 {{.*}}[[ORIGIN]], i32* @__msan_retval_origin_tls -; CHECK-ORIGINS: ret <16 x i8> +; CHECK: ret <16 x i8> ; Simple NoMem intrinsic @@ -593,21 +603,17 @@ declare <8 x i16> @llvm.x86.sse2.padds.w(<8 x i16> %a, <8 x i16> %b) nounwind ; CHECK: @Paddsw128 ; CHECK-NEXT: load <8 x i16>* {{.*}} @__msan_param_tls -; CHECK-NEXT: load <8 x i16>* {{.*}} @__msan_param_tls -; CHECK-NEXT: = or <8 x i16> -; CHECK-NEXT: call <8 x i16> @llvm.x86.sse2.padds.w -; CHECK-NEXT: store <8 x i16> {{.*}} @__msan_retval_tls -; CHECK-NEXT: ret <8 x i16> - -; CHECK-ORIGINS: @Paddsw128 ; CHECK-ORIGINS: load i32* {{.*}} @__msan_param_origin_tls +; CHECK-NEXT: load <8 x i16>* {{.*}} @__msan_param_tls ; CHECK-ORIGINS: load i32* {{.*}} @__msan_param_origin_tls +; CHECK-NEXT: = or <8 x i16> ; CHECK-ORIGINS: = bitcast <8 x i16> {{.*}} to i128 ; CHECK-ORIGINS-NEXT: = icmp ne i128 {{.*}}, 0 ; CHECK-ORIGINS-NEXT: = select i1 {{.*}}, i32 {{.*}}, i32 -; CHECK-ORIGINS: call <8 x i16> @llvm.x86.sse2.padds.w +; CHECK-NEXT: call <8 x i16> @llvm.x86.sse2.padds.w +; CHECK-NEXT: store <8 x i16> {{.*}} @__msan_retval_tls ; CHECK-ORIGINS: store i32 {{.*}} @__msan_retval_origin_tls -; CHECK-ORIGINS: ret <8 x i16> +; CHECK-NEXT: ret <8 x i16> ; Test handling of vectors of pointers. @@ -752,30 +758,6 @@ entry: ; CHECK: ret <2 x i64> -; Test byval argument shadow alignment - -define <2 x i64> @ByValArgumentShadowLargeAlignment(<2 x i64>* byval %p) sanitize_memory { -entry: - %x = load <2 x i64>* %p - ret <2 x i64> %x -} - -; CHECK-AA: @ByValArgumentShadowLargeAlignment -; CHECK-AA: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}}, i8* {{.*}}, i64 16, i32 8, i1 false) -; CHECK-AA: ret <2 x i64> - - -define i16 @ByValArgumentShadowSmallAlignment(i16* byval %p) sanitize_memory { -entry: - %x = load i16* %p - ret i16 %x -} - -; CHECK-AA: @ByValArgumentShadowSmallAlignment -; CHECK-AA: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}}, i8* {{.*}}, i64 2, i32 2, i1 false) -; CHECK-AA: ret i16 - - ; Test origin propagation for insertvalue define { i64, i32 } @make_pair_64_32(i64 %x, i32 %y) sanitize_memory { @@ -801,3 +783,45 @@ entry: ; Second element app value ; CHECK-ORIGINS: insertvalue { i64, i32 } {{.*}}, i32 {{.*}}, 1 ; CHECK-ORIGINS: ret { i64, i32 } + + +; Test shadow propagation for aggregates passed through ellipsis. + +%struct.StructByVal = type { i32, i32, i32, i32 } + +declare void @VAArgStructFn(i32 %guard, ...) + +define void @VAArgStruct(%struct.StructByVal* nocapture %s) sanitize_memory { +entry: + %agg.tmp2 = alloca %struct.StructByVal, align 8 + %0 = bitcast %struct.StructByVal* %s to i8* + %agg.tmp.sroa.0.0..sroa_cast = bitcast %struct.StructByVal* %s to i64* + %agg.tmp.sroa.0.0.copyload = load i64* %agg.tmp.sroa.0.0..sroa_cast, align 4 + %agg.tmp.sroa.2.0..sroa_idx = getelementptr inbounds %struct.StructByVal* %s, i64 0, i32 2 + %agg.tmp.sroa.2.0..sroa_cast = bitcast i32* %agg.tmp.sroa.2.0..sroa_idx to i64* + %agg.tmp.sroa.2.0.copyload = load i64* %agg.tmp.sroa.2.0..sroa_cast, align 4 + %1 = bitcast %struct.StructByVal* %agg.tmp2 to i8* + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %0, i64 16, i32 4, i1 false) + call void (i32, ...)* @VAArgStructFn(i32 undef, i64 %agg.tmp.sroa.0.0.copyload, i64 %agg.tmp.sroa.2.0.copyload, i64 %agg.tmp.sroa.0.0.copyload, i64 %agg.tmp.sroa.2.0.copyload, %struct.StructByVal* byval align 8 %agg.tmp2) + ret void +} + +; "undef" and the first 2 structs go to general purpose registers; +; the third struct goes to the overflow area byval + +; CHECK: @VAArgStruct +; undef +; CHECK: store i32 -1, i32* {{.*}}@__msan_va_arg_tls {{.*}}, align 8 +; first struct through general purpose registers +; CHECK: store i64 {{.*}}, i64* {{.*}}@__msan_va_arg_tls{{.*}}, i64 8){{.*}}, align 8 +; CHECK: store i64 {{.*}}, i64* {{.*}}@__msan_va_arg_tls{{.*}}, i64 16){{.*}}, align 8 +; second struct through general purpose registers +; CHECK: store i64 {{.*}}, i64* {{.*}}@__msan_va_arg_tls{{.*}}, i64 24){{.*}}, align 8 +; CHECK: store i64 {{.*}}, i64* {{.*}}@__msan_va_arg_tls{{.*}}, i64 32){{.*}}, align 8 +; third struct through the overflow area byval +; CHECK: ptrtoint %struct.StructByVal* {{.*}} to i64 +; CHECK: bitcast { i32, i32, i32, i32 }* {{.*}}@__msan_va_arg_tls {{.*}}, i64 176 +; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 +; CHECK: store i64 16, i64* @__msan_va_arg_overflow_size_tls +; CHECK: call void (i32, ...)* @VAArgStructFn +; CHECK: ret void |