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authorDan Gohman <gohman@apple.com>2009-01-21 14:50:16 +0000
committerDan Gohman <gohman@apple.com>2009-01-21 14:50:16 +0000
commit1ef4d8f7ee60f724eff2175ed22f75a60eb8d50d (patch)
treef5deef088f589e4ace600983207a55229e16185d /test
parent1421b7bc23f39e57052a51f4647512936f45b12f (diff)
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Fix a recent regression. ClrOpcode is not set for i8; for i8, if
we want to clear %ah to zero before a division, just use a zero-extending mov to %al. This fixes PR3366. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62691 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/CodeGen/X86/pr3366.ll21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pr3366.ll b/test/CodeGen/X86/pr3366.ll
new file mode 100644
index 0000000..a6f3e92
--- /dev/null
+++ b/test/CodeGen/X86/pr3366.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep movzbl
+; PR3366
+
+define void @_ada_c34002a() nounwind {
+entry:
+ %0 = load i8* null, align 1
+ %1 = sdiv i8 90, %0
+ %2 = icmp ne i8 %1, 3
+ %3 = zext i1 %2 to i8
+ %toBool449 = icmp ne i8 %3, 0
+ %4 = or i1 false, %toBool449
+ %5 = zext i1 %4 to i8
+ %toBool450 = icmp ne i8 %5, 0
+ br i1 %toBool450, label %bb451, label %bb457
+
+bb451:
+ br label %bb457
+
+bb457:
+ unreachable
+}