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c3f64c9980
Before this, MSan poisoned exactly one element of any array alloca, even if the number of elements was zero. llvm-svn: 296050
60 lines
2.2 KiB
LLVM
60 lines
2.2 KiB
LLVM
; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s --check-prefixes=CHECK,INLINE
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-poison-stack-with-call=1 -S | FileCheck %s --check-prefixes=CHECK,CALL
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck %s --check-prefixes=CHECK,ORIGIN
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=2 -S | FileCheck %s --check-prefixes=CHECK,ORIGIN
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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"
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target triple = "x86_64-unknown-linux-gnu"
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define void @static() sanitize_memory {
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entry:
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%x = alloca i32, align 4
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ret void
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}
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; CHECK-LABEL: define void @static(
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; INLINE: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 -1, i64 4, i32 4, i1 false)
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; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
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; ORIGIN: call void @__msan_set_alloca_origin4(i8* {{.*}}, i64 4,
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; CHECK: ret void
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define void @dynamic() sanitize_memory {
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entry:
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br label %l
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l:
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%x = alloca i32, align 4
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ret void
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}
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; CHECK-LABEL: define void @dynamic(
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; INLINE: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 -1, i64 4, i32 4, i1 false)
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; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
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; ORIGIN: call void @__msan_set_alloca_origin4(i8* {{.*}}, i64 4,
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; CHECK: ret void
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define void @array() sanitize_memory {
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entry:
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%x = alloca i32, i64 5, align 4
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ret void
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}
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; CHECK-LABEL: define void @array(
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; INLINE: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 -1, i64 20, i32 4, i1 false)
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; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 20)
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; ORIGIN: call void @__msan_set_alloca_origin4(i8* {{.*}}, i64 20,
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; CHECK: ret void
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define void @array_non_const(i64 %cnt) sanitize_memory {
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entry:
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%x = alloca i32, i64 %cnt, align 4
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ret void
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}
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; CHECK-LABEL: define void @array_non_const(
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; CHECK: %[[A:.*]] = mul i64 4, %cnt
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; INLINE: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 -1, i64 %[[A]], i32 4, i1 false)
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; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 %[[A]])
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; ORIGIN: call void @__msan_set_alloca_origin4(i8* {{.*}}, i64 %[[A]],
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; CHECK: ret void
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