forked from OSchip/llvm-project
51 lines
1.1 KiB
LLVM
51 lines
1.1 KiB
LLVM
; RUN: opt -indvars -S < %s | FileCheck %s
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declare void @use(i1)
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declare void @llvm.experimental.guard(i1, ...)
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define void @test_01(i8 %t) {
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; CHECK-LABEL: test_01
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entry:
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%st = sext i8 %t to i16
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%cmp1 = icmp slt i16 %st, 42
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call void(i1, ...) @llvm.experimental.guard(i1 %cmp1) [ "deopt"() ]
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br label %loop
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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 @test_02(i8 %t) {
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; CHECK-LABEL: test_02
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entry:
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%t.ptr = inttoptr i8 %t to i8*
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%p.42 = inttoptr i8 42 to i8*
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%cmp1 = icmp slt i8* %t.ptr, %p.42
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call void(i1, ...) @llvm.experimental.guard(i1 %cmp1) [ "deopt"() ]
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br label %loop
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loop:
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; CHECK-LABEL: loop
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%idx = phi i8* [ %t.ptr, %entry ], [ %snext, %loop ]
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%snext = getelementptr inbounds i8, i8* %idx, i64 1
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%c = icmp slt i8* %idx, %p.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* %snext, %p.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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