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

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dead instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19211 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-01 16:00:56 +00:00
parent f5ac6c27ac
commit 72a406eb14
1 changed files with 26 additions and 0 deletions
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26
test/Transforms/SimplifyCFG/DeadSetCC.ll Normal file
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; 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
}