[PATCH] D66761: Add PhaseOrdering/lifetime-sanitizer.ll tests

[Vitaly Buka via Phabricator via llvm-commits]

vitalybuka created this revision.
vitalybuka added a reviewer: lebedev.ri.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D66761

Files:
  llvm/test/Transforms/PhaseOrdering/lifetime-sanitizer.ll


Index: llvm/test/Transforms/PhaseOrdering/lifetime-sanitizer.ll
===================================================================
--- /dev/null
+++ llvm/test/Transforms/PhaseOrdering/lifetime-sanitizer.ll
@@ -0,0 +1,67 @@
+; RUN: opt < %s -O0 -S | FileCheck %s
+; RUN: opt < %s -O1 -S | FileCheck %s
+; RUN: opt < %s -O2 -S | FileCheck %s
+; RUN: opt < %s -O3 -S | FileCheck %s
+
+declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
+declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
+declare void @foo(i8* nocapture)
+
+define void @asan() sanitize_address {
+entry:
+  ; CHECK-LABEL: @asan(
+  %text = alloca i8, align 1
+
+  call void @llvm.lifetime.start.p0i8(i64 1, i8* %text)
+  call void @llvm.lifetime.end.p0i8(i64 1, i8* %text)
+  ; CHECK: call void @llvm.lifetime.start
+  ; CHECK-NEXT: call void @llvm.lifetime.end
+
+  call void @foo(i8* %text) ; Keep alloca alive
+
+  ret void
+}
+
+define void @hwasan() sanitize_hwaddress {
+entry:
+  ; CHECK-LABEL: @hwasan(
+  %text = alloca i8, align 1
+
+  call void @llvm.lifetime.start.p0i8(i64 1, i8* %text)
+  call void @llvm.lifetime.end.p0i8(i64 1, i8* %text)
+  ; CHECK: call void @llvm.lifetime.start
+  ; CHECK-NEXT: call void @llvm.lifetime.end
+
+  call void @foo(i8* %text) ; Keep alloca alive
+
+  ret void
+}
+
+define void @msan() sanitize_memory {
+entry:
+  ; CHECK-LABEL: @msan(
+  %text = alloca i8, align 1
+
+  call void @llvm.lifetime.start.p0i8(i64 1, i8* %text)
+  call void @llvm.lifetime.end.p0i8(i64 1, i8* %text)
+  ; CHECK: call void @llvm.lifetime.start
+  ; CHECK-NEXT: call void @llvm.lifetime.end
+
+  call void @foo(i8* %text) ; Keep alloca alive
+
+  ret void
+}
+
+define void @no_asan() {
+entry:
+  ; CHECK-LABEL: @no_asan(
+  %text = alloca i8, align 1
+
+  call void @llvm.lifetime.start.p0i8(i64 1, i8* %text)
+  call void @llvm.lifetime.end.p0i8(i64 1, i8* %text)
+  ; CHECK-NO: call void @llvm.lifetime
+
+  call void @foo(i8* %text) ; Keep alloca alive
+
+  ret void
+}


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