diff options
| author | Roman Divacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
| commit | 59850d0874429601812bc13408cb1f776649027c (patch) | |
| tree | b21f6de4e08b89bb7931806bab798fc2a5e3a686 /test/CodeGen/X86/wide-integer-fold.ll | |
| parent | 18f153bdb9db52e7089a2d5293b96c45a3124a26 (diff) | |
Diffstat (limited to 'test/CodeGen/X86/wide-integer-fold.ll')
| -rw-r--r-- | test/CodeGen/X86/wide-integer-fold.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/wide-integer-fold.ll b/test/CodeGen/X86/wide-integer-fold.ll new file mode 100644 index 0000000000000..b3b4d24ab3acc --- /dev/null +++ b/test/CodeGen/X86/wide-integer-fold.ll @@ -0,0 +1,12 @@ +; RUN: llc < %s -march=x86-64 | FileCheck %s +; CHECK: movq $-65535, %rax + +; DAGCombiner should fold this to a simple constant. + +define i64 @foo(i192 %a) nounwind { + %t = or i192 %a, -22300404916163702203072254898040925442801665 + %s = and i192 %t, -22300404916163702203072254898040929737768960 + %u = lshr i192 %s, 128 + %v = trunc i192 %u to i64 + ret i64 %v +} |