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diff test/CodeGen/X86/fast-isel-select.ll @ 77:54457678186b LLVM3.6

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
parents
children c2174574ed3a
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/X86/fast-isel-select.ll	Mon Sep 08 22:06:00 2014 +0900
@@ -0,0 +1,16 @@
+; RUN: llc -mtriple x86_64-apple-darwin -O0 -o - < %s | FileCheck %s
+; Make sure we only use the less significant bit of the value that feeds the
+; select. Otherwise, we may account for a non-zero value whereas the
+; lsb is zero.
+; <rdar://problem/15651765>
+
+; CHECK-LABEL: fastisel_select:
+; CHECK: subb {{%[a-z0-9]+}}, [[RES:%[a-z0-9]+]]
+; CHECK: testb $1, [[RES]]
+; CHECK: cmovnel %edi, %esi
+define i32 @fastisel_select(i1 %exchSub2211_, i1 %trunc_8766) {
+  %shuffleInternal15257_8932 = sub i1 %exchSub2211_, %trunc_8766
+  %counter_diff1345 = select i1 %shuffleInternal15257_8932, i32 1204476887, i32 0
+  ret i32 %counter_diff1345
+}
+