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| author | Evan Cheng <evan.cheng@apple.com> | 2012-09-28 23:58:57 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2012-09-28 23:58:57 +0000 |
| commit | 465970736b980a824b76a41a2ba2922f3f2d26a4 (patch) | |
| tree | 438d996feaa759d8a1c983d4ef2d53abde00dd6d /test/CodeGen | |
| parent | dc998ccb6573fb3cd6fc008b1efa9709d67af00e (diff) | |
Do not delete BBs if their addresses are taken. rdar://12396696
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164866 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/2012-09-28-CGPBug.ll | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2012-09-28-CGPBug.ll b/test/CodeGen/X86/2012-09-28-CGPBug.ll new file mode 100644 index 0000000000..32d7d012dd --- /dev/null +++ b/test/CodeGen/X86/2012-09-28-CGPBug.ll @@ -0,0 +1,53 @@ +; RUN: llc -mtriple=i386-apple-macosx < %s | FileCheck %s +; rdar://12396696 + +@JT = global [4 x i32] [i32 sub (i32 ptrtoint (i8* blockaddress(@h, %18) to i32), i32 ptrtoint (i8* blockaddress(@h, %11) to i32)), i32 sub (i32 ptrtoint (i8* blockaddress(@h, %17) to i32), i32 ptrtoint (i8* blockaddress(@h, %11) to i32)), i32 sub (i32 ptrtoint (i8* blockaddress(@h, %22) to i32), i32 ptrtoint (i8* blockaddress(@h, %18) to i32)), i32 sub (i32 ptrtoint (i8* blockaddress(@h, %22) to i32), i32 ptrtoint (i8* blockaddress(@h, %17) to i32))] +@gGlobalLock = external global i8* +@.str40 = external global [35 x i8] + +; CHECK: _JT: +; CHECK-NOT: .long Ltmp{{[0-9]+}}-1 +; CHECK-NOT: .long 1-Ltmp{{[0-9]+}} +; CHECK: .long Ltmp{{[0-9]+}}-Ltmp{{[0-9]+}} +; CHECK: .long Ltmp{{[0-9]+}}-Ltmp{{[0-9]+}} +; CHECK: .long Ltmp{{[0-9]+}}-Ltmp{{[0-9]+}} +; CHECK: .long Ltmp{{[0-9]+}}-Ltmp{{[0-9]+}} + +define void @h(i8*) nounwind ssp { + %2 = alloca i8* + store i8* %0, i8** %2 + %3 = load i8** %2 + %4 = bitcast i8* %3 to { i32, i32 }* + %5 = getelementptr { i32, i32 }* %4, i32 0, i32 0 + %6 = load i32* %5 + %7 = srem i32 %6, 2 + %8 = icmp slt i32 %6, 2 + %9 = select i1 %8, i32 %6, i32 %7 + %10 = icmp eq i32 %9, 0 + br label %11 + +; <label>:11 ; preds = %1 + %12 = zext i1 %10 to i32 + %13 = getelementptr [4 x i32]* @JT, i32 0, i32 %12 + %14 = load i32* %13 + %15 = add i32 %14, ptrtoint (i8* blockaddress(@h, %11) to i32) + %16 = inttoptr i32 %15 to i8* + indirectbr i8* %16, [label %17, label %18] + +; <label>:17 ; preds = %11 + tail call void (i8*, ...)* @g(i8* getelementptr inbounds ([35 x i8]* @.str40, i32 0, i32 0)) + br label %22 + +; <label>:18 ; preds = %11 + %19 = call i32 @f(i32 -1037694186) nounwind + %20 = inttoptr i32 %19 to i32 (i8**)* + %21 = tail call i32 %20(i8** @gGlobalLock) + br label %22 + +; <label>:22 ; preds = %18, %17 + ret void +} + +declare i32 @f(i32) + +declare void @g(i8*, ...) |