Changes in directory llvm/test/Regression/Transforms/LoopUnswitch:
2006-06-27-DeadSwitchCase.ll added (r1.1)
---
Log message:
Testcase that Nate found where LoopUnswitch chokes on eliminating a dead case
from a switch instruction.
---
Diffs of the changes: (+31 -0)
2006-06-27-DeadSwitchCase.ll | 31 +++++++++++++++++++++++++++++++
1 files changed, 31 insertions(+)
Index: llvm/test/Regression/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll
diff -c /dev/null
llvm/test/Regression/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll:1.1
*** /dev/null Tue Jun 27 17:25:09 2006
--- llvm/test/Regression/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll
Tue Jun 27 17:24:59 2006
***************
*** 0 ****
--- 1,31 ----
+ ; RUN: llvm-as < %s | opt -loop-unswitch -disable-output
+ implementation ; Functions:
+
+ void %init_caller_save() {
+ entry:
+ br label %cond_true78
+
+ cond_next20: ; preds = %cond_true64
+ br label %bb31
+
+ bb31: ; preds = %cond_true64, %cond_true64, %cond_next20
+ %iftmp.29.1 = phi uint [ 0, %cond_next20 ], [ 0, %cond_true64 ], [ 0,
%cond_true64 ] ; <uint> [#uses=0]
+ br label %bb54
+
+ bb54: ; preds = %cond_true78, %bb31
+ br bool false, label %bb75, label %cond_true64
+
+ cond_true64: ; preds = %bb54
+ switch int %i.0.0, label %cond_next20 [
+ int 17, label %bb31
+ int 18, label %bb31
+ ]
+
+ bb75: ; preds = %bb54
+ %tmp74.0 = add int %i.0.0, 1 ; <int> [#uses=1]
+ br label %cond_true78
+
+ cond_true78: ; preds = %bb75, %entry
+ %i.0.0 = phi int [ 0, %entry ], [ %tmp74.0, %bb75 ] ; <int>
[#uses=2]
+ br label %bb54
+ }
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