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29 lines
993 B
LLVM
29 lines
993 B
LLVM
; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | grep phi | wc -l | grep 1
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; This should only result in one PHI node!
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; void foo(double *D, double *E, double F) {
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; while (D != E)
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; *D++ = F;
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; }
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void %foo(double* %D, double* %E, double %F) {
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entry:
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%tmp.24 = seteq double* %D, %E ; <bool> [#uses=1]
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br bool %tmp.24, label %return, label %no_exit
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no_exit: ; preds = %no_exit, %entry
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%indvar = phi uint [ 0, %entry ], [ %indvar.next, %no_exit ] ; <uint> [#uses=3]
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%D_addr.0.0.rec = cast uint %indvar to int ; <int> [#uses=1]
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%D_addr.0.0 = getelementptr double* %D, uint %indvar ; <double*> [#uses=1]
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%inc.rec = add int %D_addr.0.0.rec, 1 ; <int> [#uses=1]
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%inc = getelementptr double* %D, int %inc.rec ; <double*> [#uses=1]
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store double %F, double* %D_addr.0.0
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%tmp.2 = seteq double* %inc, %E ; <bool> [#uses=1]
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%indvar.next = add uint %indvar, 1 ; <uint> [#uses=1]
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br bool %tmp.2, label %return, label %no_exit
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return: ; preds = %no_exit, %entry
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ret void
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}
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