46 lines
982 B
LLVM
46 lines
982 B
LLVM
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; RUN: opt -S -indvars < %s | FileCheck %s
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declare void @use(i1)
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define void @sext_condition(i8 %t) {
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; CHECK-LABEL: sext_condition
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entry:
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%st = sext i8 %t to i16
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%ecmp = icmp slt i16 %st, 42
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br i1 %ecmp, label %loop, label %exit
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loop:
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; CHECK-LABEL: loop
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%idx = phi i8 [ %t, %entry ], [ %idx.inc, %loop ]
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%idx.inc = add i8 %idx, 1
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%c = icmp slt i8 %idx, 42
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; CHECK: call void @use(i1 true)
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call void @use(i1 %c)
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%be = icmp slt i8 %idx.inc, 42
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br i1 %be, label %loop, label %exit
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exit:
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ret void
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}
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define void @zext_condition(i8 %t) {
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; CHECK-LABEL: zext_condition
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entry:
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%st = zext i8 %t to i16
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%ecmp = icmp ult i16 %st, 42
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br i1 %ecmp, label %loop, label %exit
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loop:
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; CHECK-LABEL: loop
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%idx = phi i8 [ %t, %entry ], [ %idx.inc, %loop ]
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%idx.inc = add i8 %idx, 1
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%c = icmp ult i8 %idx, 42
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; CHECK: call void @use(i1 true)
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call void @use(i1 %c)
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%be = icmp ult i8 %idx.inc, 42
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br i1 %be, label %loop, label %exit
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exit:
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ret void
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}
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