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llvm-mirror/test/Transforms/InstCombine/2007-02-01-LoadSinkAlloca.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

46 lines
1.6 KiB
LLVM

; RUN: opt < %s -instcombine -mem2reg -S | grep {%A = alloca}
; RUN: opt < %s -instcombine -mem2reg -S | \
; RUN: not grep {%B = alloca}
; END.
; Ensure that instcombine doesn't sink the loads in entry/cond_true into
; cond_next. Doing so prevents mem2reg from promoting the B alloca.
define i32 @test2(i32 %C) {
entry:
%A = alloca i32
%B = alloca i32
%tmp = call i32 (...)* @bar( i32* %A ) ; <i32> [#uses=0]
%T = load i32* %A ; <i32> [#uses=1]
%tmp2 = icmp eq i32 %C, 0 ; <i1> [#uses=1]
br i1 %tmp2, label %cond_next, label %cond_true
cond_true: ; preds = %entry
store i32 123, i32* %B
call i32 @test2( i32 123 ) ; <i32>:0 [#uses=0]
%T1 = load i32* %B ; <i32> [#uses=1]
br label %cond_next
cond_next: ; preds = %cond_true, %entry
%tmp1.0 = phi i32 [ %T1, %cond_true ], [ %T, %entry ] ; <i32> [#uses=1]
%tmp7 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp8 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp9 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp10 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp11 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp12 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp13 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp14 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp15 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp16 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp17 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp18 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp19 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
%tmp20 = call i32 (...)* @baq( ) ; <i32> [#uses=0]
ret i32 %tmp1.0
}
declare i32 @bar(...)
declare i32 @baq(...)