31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; REQUIRES: x86_64-linux
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; RUN: llc -mtriple=x86_64-- -stop-after=peephole-opt -o - %s | FileCheck %s
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define internal i32 @arc_compare() {
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entry:
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%0 = load i64, i64* undef, align 8
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br i1 undef, label %return, label %if.end
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if.end: ; preds = %entry
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; Chek a register copy has been sinked into the compare instruction.
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; CHECK: %[[#REG:]]:gr64 = IMPLICIT_DEF
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; CHECK-NOT: %[[#]]:gr64 = MOV64rm %[[#REG]]
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; CHECK: PSEUDO_PROBE 5116412291814990879, 3, 0, 0
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; CHECK: CMP64mr %[[#REG]], 1
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call void @llvm.pseudoprobe(i64 5116412291814990879, i64 3, i32 0, i64 -1)
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%cmp4 = icmp slt i64 %0, undef
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br i1 %cmp4, label %return, label %if.end6
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if.end6: ; preds = %if.end
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call void @llvm.pseudoprobe(i64 5116412291814990879, i64 5, i32 0, i64 -1)
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br label %return
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return: ; preds = %if.end6, %if.end, %entry
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ret i32 undef
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}
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; Function Attrs: inaccessiblememonly nounwind willreturn
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declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0
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attributes #0 = { inaccessiblememonly nounwind willreturn }
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