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Differential D131744

fix up IR tests
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Authored by kda on Aug 11 2022, 7:05 PM.

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kda created this revision.Aug 11 2022, 7:05 PM
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Harbormaster completed remote builds in B180831: Diff 452050.Aug 11 2022, 7:05 PM

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llvm/
test/
Instrumentation/
MemorySanitizer/
30 lines

Diff 452050

llvm/test/Instrumentation/MemorySanitizer/alloca.ll

; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck \ ; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck \
; RUN: %s "--check-prefixes=CHECK,INLINE" ; RUN: %s "--check-prefixes=CHECK,INLINE"
; RUN: opt < %s -msan-check-access-address=0 -msan-poison-stack-with-call=1 -S \ ; RUN: opt < %s -msan-check-access-address=0 -msan-poison-stack-with-call=1 -S \
; RUN: -passes=msan 2>&1 | FileCheck %s "--check-prefixes=CHECK,CALL" ; RUN: -passes=msan 2>&1 | FileCheck %s "--check-prefixes=CHECK,CALL"
; RUN: opt < %s -msan-check-access-address=0 -msan-track-origins=1 -S \ ; RUN: opt < %s -msan-check-access-address=0 -msan-track-origins=1 -S \
; RUN: -passes=msan 2>&1 | FileCheck %s "--check-prefixes=CHECK,ORIGIN" ; RUN: -passes=msan 2>&1 | FileCheck %s "--check-prefixes=CHECK,ORIGIN"
; RUN: opt < %s -msan-check-access-address=0 -msan-track-origins=2 -S \ ; RUN: opt < %s -msan-check-access-address=0 -msan-track-origins=2 -S \
; RUN: -passes=msan 2>&1 | FileCheck %s "--check-prefixes=CHECK,ORIGIN" ; RUN: -passes=msan 2>&1 | FileCheck %s "--check-prefixes=CHECK,ORIGIN"
; RUN: opt < %s -S -passes="msan<kernel>" 2>&1 | FileCheck %s \ ; RUN: opt < %s -S -passes="msan<kernel>" 2>&1 | FileCheck %s \
; RUN: "--check-prefixes=CHECK,KMSAN" ; RUN: "--check-prefixes=CHECK,KMSAN"
; RUN: opt < %s -msan-kernel=1 -S -passes=msan 2>&1 | FileCheck %s \ ; RUN: opt < %s -msan-kernel=1 -S -passes=msan 2>&1 | FileCheck %s \
; RUN: "--check-prefixes=CHECK,KMSAN" ; RUN: "--check-prefixes=CHECK,KMSAN"
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 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" target triple = "x86_64-unknown-linux-gnu"
; ORIGIN: [[D:@[0-9]+]] = private global [13 x i8] c"----unique_x\00" ; ORIGIN: [[D:@[0-9]+]] = private constant [9 x i8] c"unique_x\00"
define void @static() sanitize_memory { define void @static() sanitize_memory {
entry: entry:
%unique_x = alloca i32, align 4 %unique_x = alloca i32, align 4
ret void ret void
} }
; CHECK-LABEL: define void @static( ; CHECK-LABEL: define void @static(
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, i8* {{.*}} [[D]], ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4, i8* {{.*}} [[D]],
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: ret void ; CHECK: ret void
define void @dynamic() sanitize_memory { define void @dynamic() sanitize_memory {
entry: entry:
br label %l br label %l
l: l:
%x = alloca i32, align 4 %x = alloca i32, align 4
ret void ret void
} }
; CHECK-LABEL: define void @dynamic( ; CHECK-LABEL: define void @dynamic(
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: ret void ; CHECK: ret void
define void @array() sanitize_memory { define void @array() sanitize_memory {
entry: entry:
%x = alloca i32, i64 5, align 4 %x = alloca i32, i64 5, align 4
ret void ret void
} }
; CHECK-LABEL: define void @array( ; CHECK-LABEL: define void @array(
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 20, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 20, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 20) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 20)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 20, ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 20,
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 20, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 20,
; CHECK: ret void ; CHECK: ret void
define void @array_non_const(i64 %cnt) sanitize_memory { define void @array_non_const(i64 %cnt) sanitize_memory {
entry: entry:
%x = alloca i32, i64 %cnt, align 4 %x = alloca i32, i64 %cnt, align 4
ret void ret void
} }
; CHECK-LABEL: define void @array_non_const( ; CHECK-LABEL: define void @array_non_const(
; CHECK: %[[A:.*]] = mul i64 4, %cnt ; CHECK: %[[A:.*]] = mul i64 4, %cnt
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 %[[A]], i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 %[[A]], i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 %[[A]]) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 %[[A]])
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 %[[A]], ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 %[[A]],
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 %[[A]], ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 %[[A]],
; CHECK: ret void ; CHECK: ret void
; Check that the local is unpoisoned in the absence of sanitize_memory ; Check that the local is unpoisoned in the absence of sanitize_memory
define void @unpoison_local() { define void @unpoison_local() {
entry: entry:
%x = alloca i32, i64 5, align 4 %x = alloca i32, i64 5, align 4
ret void ret void
} }
; CHECK-LABEL: define void @unpoison_local( ; CHECK-LABEL: define void @unpoison_local(
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 0, i64 20, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 0, i64 20, i1 false)
; CALL: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 0, i64 20, i1 false) ; CALL: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 0, i64 20, i1 false)
; ORIGIN-NOT: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 20, ; ORIGIN-NOT: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 20,
; KMSAN: call void @__msan_unpoison_alloca(i8* {{.*}}, i64 20) ; KMSAN: call void @__msan_unpoison_alloca(i8* {{.*}}, i64 20)
; CHECK: ret void ; CHECK: ret void
; Check that every llvm.lifetime.start() causes poisoning of locals. ; Check that every llvm.lifetime.start() causes poisoning of locals.
define void @lifetime_start() sanitize_memory { define void @lifetime_start() sanitize_memory {
entry: entry:
%x = alloca i32, align 4 %x = alloca i32, align 4
%c = bitcast i32* %x to i8* %c = bitcast i32* %x to i8*
Show All 12 Lines
; CHECK-LABEL: define void @lifetime_start( ; CHECK-LABEL: define void @lifetime_start(
; CHECK-LABEL: entry: ; CHECK-LABEL: entry:
; CHECK: %x = alloca i32 ; CHECK: %x = alloca i32
; CHECK-LABEL: another_bb: ; CHECK-LABEL: another_bb:
; CHECK: call void @llvm.lifetime.start ; CHECK: call void @llvm.lifetime.start
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: call void @llvm.lifetime.start ; CHECK: call void @llvm.lifetime.start
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: ret void ; CHECK: ret void
; Make sure variable-length arrays are handled correctly. ; Make sure variable-length arrays are handled correctly.
define void @lifetime_start_var(i64 %cnt) sanitize_memory { define void @lifetime_start_var(i64 %cnt) sanitize_memory {
entry: entry:
%x = alloca i32, i64 %cnt, align 4 %x = alloca i32, i64 %cnt, align 4
%c = bitcast i32* %x to i8* %c = bitcast i32* %x to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* nonnull %c) call void @llvm.lifetime.start.p0i8(i64 -1, i8* nonnull %c)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* nonnull %c) call void @llvm.lifetime.end.p0i8(i64 -1, i8* nonnull %c)
ret void ret void
} }
; CHECK-LABEL: define void @lifetime_start_var( ; CHECK-LABEL: define void @lifetime_start_var(
; CHECK-LABEL: entry: ; CHECK-LABEL: entry:
; CHECK: %x = alloca i32, i64 %cnt ; CHECK: %x = alloca i32, i64 %cnt
; CHECK: call void @llvm.lifetime.start ; CHECK: call void @llvm.lifetime.start
; CHECK: %[[A:.*]] = mul i64 4, %cnt ; CHECK: %[[A:.*]] = mul i64 4, %cnt
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 %[[A]], i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 %[[A]], i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 %[[A]]) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 %[[A]])
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 %[[A]], ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 %[[A]],
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 %[[A]], ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 %[[A]],
; CHECK: call void @llvm.lifetime.end ; CHECK: call void @llvm.lifetime.end
; CHECK: ret void ; CHECK: ret void
; If we can't trace one of the lifetime markers to a single alloca, fall back ; If we can't trace one of the lifetime markers to a single alloca, fall back
; to poisoning allocas at the beginning of the function. ; to poisoning allocas at the beginning of the function.
; Each alloca must be poisoned only once. ; Each alloca must be poisoned only once.
Show All 23 Linesanother_bb:
ret void ret void
} }
; CHECK-LABEL: define void @lifetime_no_alloca( ; CHECK-LABEL: define void @lifetime_no_alloca(
; CHECK-LABEL: entry: ; CHECK-LABEL: entry:
; CHECK: %x = alloca i32 ; CHECK: %x = alloca i32
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: %y = alloca i32 ; CHECK: %y = alloca i32
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: %z = alloca i32 ; CHECK: %z = alloca i32
; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; There're two lifetime intrinsics for %z, but we must instrument it only once. ; There're two lifetime intrinsics for %z, but we must instrument it only once.
; INLINE-NOT: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE-NOT: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL-NOT: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL-NOT: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN-NOT: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN-NOT: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN-NOT: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN-NOT: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK-LABEL: another_bb: ; CHECK-LABEL: another_bb:
; CHECK: call void @llvm.lifetime.start ; CHECK: call void @llvm.lifetime.start
; INLINE-NOT: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE-NOT: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL-NOT: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL-NOT: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN-NOT: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN-NOT: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN-NOT: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN-NOT: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: call void @llvm.lifetime.end ; CHECK: call void @llvm.lifetime.end
; CHECK: call void @llvm.lifetime.start ; CHECK: call void @llvm.lifetime.start
; INLINE-NOT: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false) ; INLINE-NOT: call void @llvm.memset.p0i8.i64(i8* align 4 {{.*}}, i8 -1, i64 4, i1 false)
; CALL-NOT: call void @__msan_poison_stack(i8* {{.*}}, i64 4) ; CALL-NOT: call void @__msan_poison_stack(i8* {{.*}}, i64 4)
; ORIGIN-NOT: call void @__msan_set_alloca_origin5(i8* {{.*}}, i64 4, ; ORIGIN-NOT: call void @__msan_set_alloca_origin_with_descr(i8* {{.*}}, i64 4,
; KMSAN-NOT: call void @__msan_poison_alloca(i8* {{.*}}, i64 4, ; KMSAN-NOT: call void @__msan_poison_alloca(i8* {{.*}}, i64 4,
; CHECK: call void @llvm.lifetime.end ; CHECK: call void @llvm.lifetime.end
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)