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Diffstat (limited to 'test/CodeGen/X86/2009-07-20-DAGCombineBug.ll')
| -rw-r--r-- | test/CodeGen/X86/2009-07-20-DAGCombineBug.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2009-07-20-DAGCombineBug.ll b/test/CodeGen/X86/2009-07-20-DAGCombineBug.ll new file mode 100644 index 000000000000..e83b3a7db592 --- /dev/null +++ b/test/CodeGen/X86/2009-07-20-DAGCombineBug.ll @@ -0,0 +1,29 @@ +; RUN: llc < %s -march=x86 + +@bsBuff = internal global i32 0 ; <i32*> [#uses=1] +@llvm.used = appending global [1 x i8*] [i8* bitcast (i32 ()* @bsGetUInt32 to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0] + +define fastcc i32 @bsGetUInt32() nounwind ssp { +entry: + %bsBuff.promoted44 = load i32* @bsBuff ; <i32> [#uses=1] + %0 = add i32 0, -8 ; <i32> [#uses=1] + %1 = lshr i32 %bsBuff.promoted44, %0 ; <i32> [#uses=1] + %2 = shl i32 %1, 8 ; <i32> [#uses=1] + br label %bb3.i17 + +bb3.i9: ; preds = %bb3.i17 + br i1 false, label %bb2.i16, label %bb1.i15 + +bb1.i15: ; preds = %bb3.i9 + unreachable + +bb2.i16: ; preds = %bb3.i9 + br label %bb3.i17 + +bb3.i17: ; preds = %bb2.i16, %entry + br i1 false, label %bb3.i9, label %bsR.exit18 + +bsR.exit18: ; preds = %bb3.i17 + %3 = or i32 0, %2 ; <i32> [#uses=0] + ret i32 0 +} |