diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/twoaddr-coalesce.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/twoaddr-coalesce.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/twoaddr-coalesce.ll b/llvm/test/CodeGen/X86/twoaddr-coalesce.ll new file mode 100644 index 00000000000..c369d91f56a --- /dev/null +++ b/llvm/test/CodeGen/X86/twoaddr-coalesce.ll @@ -0,0 +1,25 @@ +; RUN: llvm-as < %s | llc -march=x86 -join-cross-class-copies -stats |& \ +; RUN: grep {twoaddrinstr} | grep {Number of instructions aggressively commuted} +; rdar://6523745 + +@"\01LC" = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1] + +define i32 @main() nounwind { +bb1.thread: + br label %bb1 + +bb1: ; preds = %bb1, %bb1.thread + %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2] + %0 = trunc i32 %i.0.reg2mem.0 to i8 ; <i8> [#uses=1] + %1 = sdiv i8 %0, 2 ; <i8> [#uses=1] + %2 = sext i8 %1 to i32 ; <i32> [#uses=1] + %3 = tail call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), i32 %2) nounwind ; <i32> [#uses=0] + %indvar.next = add i32 %i.0.reg2mem.0, 1 ; <i32> [#uses=2] + %exitcond = icmp eq i32 %indvar.next, 258 ; <i1> [#uses=1] + br i1 %exitcond, label %bb2, label %bb1 + +bb2: ; preds = %bb1 + ret i32 0 +} + +declare i32 @printf(i8*, ...) nounwind |
