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llvm-mirror/test/Transforms/InstCombine/2004-09-20-BadLoadCombine2.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

26 lines
859 B
LLVM

; RUN: opt < %s -instcombine -mem2reg -simplifycfg | \
; RUN: llvm-dis | grep -v store | not grep {i32 1}
; Test to make sure that instcombine does not accidentally propagate the load
; into the PHI, which would break the program.
define i32 @test(i1 %C) {
entry:
%X = alloca i32 ; <i32*> [#uses=3]
%X2 = alloca i32 ; <i32*> [#uses=2]
store i32 1, i32* %X
store i32 2, i32* %X2
br i1 %C, label %cond_true.i, label %cond_continue.i
cond_true.i: ; preds = %entry
br label %cond_continue.i
cond_continue.i: ; preds = %cond_true.i, %entry
%mem_tmp.i.0 = phi i32* [ %X, %cond_true.i ], [ %X2, %entry ] ; <i32*> [#uses=1]
store i32 3, i32* %X
%tmp.3 = load i32* %mem_tmp.i.0 ; <i32> [#uses=1]
ret i32 %tmp.3
}