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llvm-mirror/test/Transforms/InstCombine/2003-08-12-AllocaNonNull.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

22 lines
660 B
LLVM

; This testcase can be simplified by "realizing" that alloca can never return
; null.
; RUN: opt < %s -instcombine -simplifycfg | \
; RUN: llvm-dis | not grep br
declare i32 @bitmap_clear(...)
define i32 @oof() {
entry:
%live_head = alloca i32 ; <i32*> [#uses=2]
%tmp.1 = icmp ne i32* %live_head, null ; <i1> [#uses=1]
br i1 %tmp.1, label %then, label %UnifiedExitNode
then: ; preds = %entry
%tmp.4 = call i32 (...)* @bitmap_clear( i32* %live_head ) ; <i32> [#uses=0]
br label %UnifiedExitNode
UnifiedExitNode: ; preds = %then, %entry
ret i32 0
}