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-rw-r--r--test/CodeGen/ARM/2012-11-14-subs_carry.ll31
1 files changed, 31 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/2012-11-14-subs_carry.ll b/test/CodeGen/ARM/2012-11-14-subs_carry.ll
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--- /dev/null
+++ b/test/CodeGen/ARM/2012-11-14-subs_carry.ll
@@ -0,0 +1,31 @@
+; RUN: llc < %s -mtriple=thumbv7-apple-ios | FileCheck %s
+
+;CHECK: foo
+;CHECK: adds
+;CHECK-NEXT: adc
+;CHECK-NEXT: bx
+
+;rdar://12028498
+
+define i32 @foo() nounwind ssp {
+entry:
+ %tmp2 = zext i32 3 to i64
+ br label %bug_block
+
+bug_block:
+ %tmp410 = and i64 1031, 1647010
+ %tmp411 = and i64 %tmp2, -211
+ %tmp412 = shl i64 %tmp410, %tmp2
+ %tmp413 = shl i64 %tmp411, %tmp2
+ %tmp415 = and i64 %tmp413, 1
+ %tmp420 = xor i64 0, %tmp415
+ %tmp421 = and i64 %tmp412, %tmp415
+ %tmp422 = shl i64 %tmp421, 1
+ br label %finish
+
+finish:
+ %tmp423 = lshr i64 %tmp422, 32
+ %tmp424 = trunc i64 %tmp423 to i32
+ ret i32 %tmp424
+}
+