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4168a65f41
Change origin-alignment test to test only the alignment of the origin store, and not the exact instruction sequence used to compute the address. This makes the test less fragile and, in particular, lets it pass both with the old and new MSan ABIs. llvm-svn: 254027
75 lines
2.7 KiB
LLVM
75 lines
2.7 KiB
LLVM
; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS1 %s
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=2 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS2 %s
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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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; Check origin instrumentation of stores.
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; Check that debug info for origin propagation code is set correctly.
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@a8 = global i8 0, align 8
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@a4 = global i8 0, align 4
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@a2 = global i8 0, align 2
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@a1 = global i8 0, align 1
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; 8-aligned store => 8-aligned origin store, origin address is not realigned
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define void @Store8(i8 %x) sanitize_memory {
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entry:
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store i8 %x, i8* @a8, align 8
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ret void
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}
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; CHECK-LABEL: @Store8
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; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]])
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; CHECK: store i32 [[ORIGIN]], {{.*}}, align 8
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; CHECK: ret void
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; 4-aligned store => 4-aligned origin store, origin address is not realigned
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define void @Store4(i8 %x) sanitize_memory {
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entry:
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store i8 %x, i8* @a4, align 4
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ret void
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}
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; CHECK-LABEL: @Store4
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; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]])
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; CHECK: store i32 [[ORIGIN]], {{.*}}, align 4
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; CHECK: ret void
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; 2-aligned store => 4-aligned origin store, origin address is realigned
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define void @Store2(i8 %x) sanitize_memory {
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entry:
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store i8 %x, i8* @a2, align 2
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ret void
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}
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; CHECK-LABEL: @Store2
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; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]])
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; CHECK: store i32 [[ORIGIN]], {{.*}}, align 4
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; CHECK: ret void
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; 1-aligned store => 4-aligned origin store, origin address is realigned
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define void @Store1(i8 %x) sanitize_memory {
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entry:
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store i8 %x, i8* @a1, align 1
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ret void
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}
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; CHECK-LABEL: @Store1
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; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
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; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]])
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; CHECK: store i32 [[ORIGIN]], {{.*}}, align 4
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; CHECK: ret void
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