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llvm-mirror/test/Transforms/ADCE/2003-04-25-PHIPostDominateProblem.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

36 lines
1.0 KiB
LLVM

; THis testcase caused an assertion failure because a PHI node did not have
; entries for it's postdominator. But I think this can only happen when the
; PHI node is dead, so we just avoid patching up dead PHI nodes.
; RUN: opt < %s -adce
target datalayout = "e-p:32:32"
define void @dead_test8() {
entry:
br label %loopentry
loopentry: ; preds = %endif, %entry
%k.1 = phi i32 [ %k.0, %endif ], [ 0, %entry ] ; <i32> [#uses=1]
br i1 false, label %no_exit, label %return
no_exit: ; preds = %loopentry
br i1 false, label %then, label %else
then: ; preds = %no_exit
br label %endif
else: ; preds = %no_exit
%dec = add i32 %k.1, -1 ; <i32> [#uses=1]
br label %endif
endif: ; preds = %else, %then
%k.0 = phi i32 [ %dec, %else ], [ 0, %then ] ; <i32> [#uses=1]
store i32 2, i32* null
br label %loopentry
return: ; preds = %loopentry
ret void
}