[llvm-commits] CVS: llvm/test/Regression/Transforms/SimplifyCFG/DeadSetCC.ll

[Chris Lattner]

Changes in directory llvm/test/Regression/Transforms/SimplifyCFG:

DeadSetCC.ll added (r1.1)
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Log message:

Add new test to make sure simplifycfg doesn't leave around trivially
dead instructions.


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Diffs of the changes:  (+26 -0)

Index: llvm/test/Regression/Transforms/SimplifyCFG/DeadSetCC.ll
diff -c /dev/null llvm/test/Regression/Transforms/SimplifyCFG/DeadSetCC.ll:1.1
*** /dev/null	Sat Jan  1 10:01:06 2005
--- llvm/test/Regression/Transforms/SimplifyCFG/DeadSetCC.ll	Sat Jan  1 10:00:56 2005
***************
*** 0 ****
--- 1,26 ----
+ ; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep seteq
+ 
+ ; Check that simplifycfg deletes a dead 'seteq' instruction when it
+ ; folds a conditional branch into a switch instruction.
+ 
+ declare void %foo()
+ declare void %bar()
+ 
+ void %testcfg(uint %V) {
+ 	%C = seteq uint %V, 18
+ 	%D = seteq uint %V, 180
+ 	%E = or bool %C, %D
+ 	br bool %E, label %L1, label %Sw
+ Sw:
+        switch uint %V, label %L1 [
+               uint 15, label %L2
+               uint 16, label %L2
+         ]
+ L1:
+ 	call void %foo()
+ 	ret void
+ L2:
+ 	call void %bar()
+ 	ret void
+ }
+