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testcase that crashes lsr, distilled from 175.vpr

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llvm-svn: 22796
This commit is contained in:
Chris Lattner 2005-08-16 00:36:12 +00:00
parent 543dd2e01c
commit 68e050feda
1 changed files with 77 additions and 0 deletions
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77
test/Regression/Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll Normal file
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; RUN: llvm-as < %s | opt -loop-reduce -disable-output
void %try_swap() {
entry:
br bool false, label %cond_continue.0.i, label %cond_false.0.i
cond_false.0.i: ; preds = %entry
ret void
cond_continue.0.i: ; preds = %entry
br bool false, label %cond_continue.1.i, label %cond_false.1.i
cond_false.1.i: ; preds = %cond_continue.0.i
ret void
cond_continue.1.i: ; preds = %cond_continue.0.i
br bool false, label %endif.3.i, label %else.0.i
endif.3.i: ; preds = %cond_continue.1.i
br bool false, label %my_irand.exit82, label %endif.0.i62
else.0.i: ; preds = %cond_continue.1.i
ret void
endif.0.i62: ; preds = %endif.3.i
ret void
my_irand.exit82: ; preds = %endif.3.i
br bool false, label %else.2, label %then.4
then.4: ; preds = %my_irand.exit82
ret void
else.2: ; preds = %my_irand.exit82
br bool false, label %find_affected_nets.exit, label %loopentry.1.i107.outer.preheader
loopentry.1.i107.outer.preheader: ; preds = %else.2
ret void
find_affected_nets.exit: ; preds = %else.2
br bool false, label %save_region_occ.exit, label %loopentry.1
save_region_occ.exit: ; preds = %find_affected_nets.exit
br bool false, label %no_exit.1.preheader, label %loopexit.1
loopentry.1: ; preds = %find_affected_nets.exit
ret void
no_exit.1.preheader: ; preds = %save_region_occ.exit
ret void
loopexit.1: ; preds = %save_region_occ.exit
br bool false, label %then.10, label %loopentry.3
then.10: ; preds = %loopexit.1
ret void
loopentry.3: ; preds = %endif.16, %loopexit.1
%indvar342 = phi uint [ %indvar.next343, %endif.16 ], [ 0, %loopexit.1 ] ; <uint> [#uses=2]
br bool false, label %loopexit.3, label %endif.16
endif.16: ; preds = %loopentry.3
%indvar.next343 = add uint %indvar342, 1 ; <uint> [#uses=1]
br label %loopentry.3
loopexit.3: ; preds = %loopentry.3
br label %loopentry.4
loopentry.4: ; preds = %loopentry.4, %loopexit.3
%indvar340 = phi uint [ 0, %loopexit.3 ], [ %indvar.next341, %loopentry.4 ] ; <uint> [#uses=2]
%tmp. = add uint %indvar340, %indvar342 ; <uint> [#uses=1]
%tmp.526 = load int** null ; <int*> [#uses=1]
%tmp.528 = getelementptr int* %tmp.526, uint %tmp. ; <int*> [#uses=1]
store int 0, int* %tmp.528
%indvar.next341 = add uint %indvar340, 1 ; <uint> [#uses=1]
br label %loopentry.4
}