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Diffstat (limited to 'test/CodeGen/X86/subreg-to-reg-6.ll')
| -rw-r--r-- | test/CodeGen/X86/subreg-to-reg-6.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/X86/subreg-to-reg-6.ll b/test/CodeGen/X86/subreg-to-reg-6.ll new file mode 100644 index 0000000..f18eef7 --- /dev/null +++ b/test/CodeGen/X86/subreg-to-reg-6.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | llc -march=x86-64 + +define i64 @foo() nounwind { +entry: + %t0 = load i32* null, align 8 + switch i32 %t0, label %bb65 [ + i32 16, label %bb + i32 12, label %bb56 + ] + +bb: + br label %bb65 + +bb56: + unreachable + +bb65: + %a = phi i64 [ 0, %bb ], [ 0, %entry ] + tail call void asm "", "{cx}"(i64 %a) nounwind + %t15 = and i64 %a, 4294967295 + ret i64 %t15 +} + +define i64 @bar(i64 %t0) nounwind { + call void asm "", "{cx}"(i64 0) nounwind + %t1 = sub i64 0, %t0 + %t2 = and i64 %t1, 4294967295 + ret i64 %t2 +} |