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authordim <dim@FreeBSD.org>2013-04-08 18:41:23 +0000
committerdim <dim@FreeBSD.org>2013-04-08 18:41:23 +0000
commit169d2bd06003c39970bc94c99669a34b61bb7e45 (patch)
tree06099edc18d30894081a822b756f117cbe0b8207 /test/CodeGen/ARM/extload-knownzero.ll
parent0ac5f94c68a3d8fbd1380dbba26d891ea7816b5e (diff)
downloadFreeBSD-src-169d2bd06003c39970bc94c99669a34b61bb7e45.zip
FreeBSD-src-169d2bd06003c39970bc94c99669a34b61bb7e45.tar.gz
Vendor import of llvm trunk r178860:
http://llvm.org/svn/llvm-project/llvm/trunk@178860
Diffstat (limited to 'test/CodeGen/ARM/extload-knownzero.ll')
-rw-r--r--test/CodeGen/ARM/extload-knownzero.ll26
1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/extload-knownzero.ll b/test/CodeGen/ARM/extload-knownzero.ll
new file mode 100644
index 0000000..8fd6b6b
--- /dev/null
+++ b/test/CodeGen/ARM/extload-knownzero.ll
@@ -0,0 +1,26 @@
+; RUN: llc < %s -march=arm -mcpu=cortex-a8 | FileCheck %s
+; rdar://12771555
+
+define void @foo(i16* %ptr, i32 %a) nounwind {
+entry:
+; CHECK: foo:
+ %tmp1 = icmp ult i32 %a, 100
+ br i1 %tmp1, label %bb1, label %bb2
+bb1:
+; CHECK: ldrh
+ %tmp2 = load i16* %ptr, align 2
+ br label %bb2
+bb2:
+; CHECK-NOT: uxth
+; CHECK: cmp
+ %tmp3 = phi i16 [ 0, %entry ], [ %tmp2, %bb1 ]
+ %cmp = icmp ult i16 %tmp3, 24
+ br i1 %cmp, label %bb3, label %exit
+bb3:
+ call void @bar() nounwind
+ br label %exit
+exit:
+ ret void
+}
+
+declare void @bar ()
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