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22 lines
728 B
LLVM
22 lines
728 B
LLVM
; Make sure that the compare instruction occurs after the increment to avoid
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; having overlapping live ranges that result in copies. We want the setcc
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; instruction immediately before the conditional branch.
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;
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; RUN: opt -S -loop-reduce < %s | FileCheck %s
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define void @foo(float* %D, i32 %E) {
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entry:
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br label %no_exit
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no_exit: ; preds = %no_exit, %entry
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%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %no_exit ] ; <i32> [#uses=1]
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store volatile float 0.000000e+00, float* %D
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
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; CHECK: icmp
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; CHECK-NEXT: br i1
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%exitcond = icmp eq i32 %indvar.next, %E ; <i1> [#uses=1]
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br i1 %exitcond, label %loopexit, label %no_exit
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loopexit: ; preds = %no_exit
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ret void
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}
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