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Once we're down to "setcc type constant1, constant2", at least come up

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with the right answer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30550 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2006-09-20 23:02:24 +00:00
parent f824868ed9
commit af2f1fe94e
2 changed files with 68 additions and 18 deletions
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54
test/Transforms/PredicateSimplifier/2006-09-20-SetCC.ll Normal file
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; RUN: llvm-as < %s | opt -predsimplify | llvm-dis | grep br | grep bb8 | grep cond_true$ | grep false
%str = external global [4 x sbyte] ; <[4 x sbyte]*> [#uses=1]
implementation ; Functions:
declare int %sprintf(sbyte*, sbyte*, ...)
int %main() {
entry:
br label %cond_true.outer
cond_true.outer: ; preds = %cond_true.i, %entry
%i.0.0.ph = phi int [ 0, %entry ], [ %tmp5, %cond_true.i ] ; <int> [#uses=1]
%j.0.0.ph = phi int [ 0, %entry ], [ %tmp312, %cond_true.i ] ; <int> [#uses=2]
br label %cond_true
cond_true: ; preds = %return.i, %cond_true.outer
%indvar = phi uint [ 0, %cond_true.outer ], [ %indvar.next, %return.i ] ; <uint> [#uses=2]
%indvar = cast uint %indvar to int ; <int> [#uses=1]
%i.0.0 = add int %indvar, %i.0.0.ph ; <int> [#uses=3]
%savedstack = call sbyte* %llvm.stacksave( ) ; <sbyte*> [#uses=2]
%tmp.i = seteq int %i.0.0, 0 ; <bool> [#uses=1]
%tmp5 = add int %i.0.0, 1 ; <int> [#uses=3]
br bool %tmp.i, label %return.i, label %cond_true.i
cond_true.i: ; preds = %cond_true
%tmp.i = alloca [1000 x sbyte] ; <[1000 x sbyte]*> [#uses=1]
%tmp.sub.i = getelementptr [1000 x sbyte]* %tmp.i, int 0, int 0 ; <sbyte*> [#uses=2]
%tmp4.i = call int (sbyte*, sbyte*, ...)* %sprintf( sbyte* %tmp.sub.i, sbyte* getelementptr ([4 x sbyte]* %str, int 0, uint 0), int %i.0.0 ) ; <int> [#uses=0]
%tmp.i = load sbyte* %tmp.sub.i ; <sbyte> [#uses=1]
%tmp7.i = cast sbyte %tmp.i to int ; <int> [#uses=1]
call void %llvm.stackrestore( sbyte* %savedstack )
%tmp312 = add int %tmp7.i, %j.0.0.ph ; <int> [#uses=2]
%tmp19 = setgt int %tmp5, 9999 ; <bool> [#uses=1]
br bool %tmp19, label %bb8, label %cond_true.outer
return.i: ; preds = %cond_true
call void %llvm.stackrestore( sbyte* %savedstack )
%tmp21 = setgt int %tmp5, 9999 ; <bool> [#uses=1]
%indvar.next = add uint %indvar, 1 ; <uint> [#uses=1]
br bool %tmp21, label %bb8, label %cond_true
bb8: ; preds = %return.i, %cond_true.i
%j.0.1 = phi int [ %j.0.0.ph, %return.i ], [ %tmp312, %cond_true.i ] ; <int> [#uses=1]
%tmp10 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %str, int 0, uint 0), int %j.0.1 ) ; <int> [#uses=0]
ret int undef
}
declare int %printf(sbyte*, ...)
declare sbyte* %llvm.stacksave()
declare void %llvm.stackrestore(sbyte*)