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| author | Evan Cheng <evan.cheng@apple.com> | 2009-07-20 19:47:55 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-07-20 19:47:55 +0000 |
| commit | 53ec6b7e82b1846bf326031326092ea2f3858ea8 (patch) | |
| tree | 4b1025e0509db86d9cce316d6f4c59c07fa00d8f /test/CodeGen/Thumb | |
| parent | 527436bf9c4eabe12086c684f0b95654a747d275 (diff) | |
| download | external_llvm-53ec6b7e82b1846bf326031326092ea2f3858ea8.zip external_llvm-53ec6b7e82b1846bf326031326092ea2f3858ea8.tar.gz external_llvm-53ec6b7e82b1846bf326031326092ea2f3858ea8.tar.bz2 | |
Fix some sub-reg coalescing bugs where the coalescer wasn't updating the resulting interval's register class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76458 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb')
| -rw-r--r-- | test/CodeGen/Thumb/2009-07-19-SPDecBug.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/2009-07-19-SPDecBug.ll b/test/CodeGen/Thumb/2009-07-19-SPDecBug.ll new file mode 100644 index 0000000..5fd2e73 --- /dev/null +++ b/test/CodeGen/Thumb/2009-07-19-SPDecBug.ll @@ -0,0 +1,33 @@ +; RUN: llvm-as < %s | llc -mtriple=thumbv6-elf | not grep "subs sp" +; PR4567 + +define arm_apcscc i8* @__gets_chk(i8* %s, i32 %slen) nounwind { +entry: + br i1 undef, label %bb, label %bb1 + +bb: ; preds = %entry + ret i8* undef + +bb1: ; preds = %entry + br i1 undef, label %bb3, label %bb2 + +bb2: ; preds = %bb1 + %0 = alloca i8, i32 undef, align 4 ; <i8*> [#uses=0] + br label %bb4 + +bb3: ; preds = %bb1 + %1 = malloc i8, i32 undef ; <i8*> [#uses=0] + br label %bb4 + +bb4: ; preds = %bb3, %bb2 + br i1 undef, label %bb5, label %bb6 + +bb5: ; preds = %bb4 + %2 = call arm_apcscc i8* @gets(i8* %s) nounwind ; <i8*> [#uses=1] + ret i8* %2 + +bb6: ; preds = %bb4 + unreachable +} + +declare arm_apcscc i8* @gets(i8*) nounwind |