1; REQUIRES: x86_64-linux 2; RUN: llc -mtriple=x86_64-- -stop-after=peephole-opt -o - %s | FileCheck %s 3 4define internal i32 @arc_compare(i1 %c) { 5entry: 6 %0 = load i64, ptr undef, align 8 7 br i1 %c, label %return, label %if.end 8 9if.end: ; preds = %entry 10; Chek a register copy has been sinked into the compare instruction. 11; CHECK: %[[#REG:]]:gr64 = IMPLICIT_DEF 12; CHECK-NOT: %[[#]]:gr64 = MOV64rm %[[#REG]] 13; CHECK: PSEUDO_PROBE 5116412291814990879, 3, 0, 0 14; CHECK: CMP64mi32 %[[#REG]], 1 15 call void @llvm.pseudoprobe(i64 5116412291814990879, i64 3, i32 0, i64 -1) 16 %cmp4 = icmp slt i64 %0, 0 17 br i1 %cmp4, label %return, label %if.end6 18 19if.end6: ; preds = %if.end 20 call void @llvm.pseudoprobe(i64 5116412291814990879, i64 5, i32 0, i64 -1) 21 br label %return 22 23return: ; preds = %if.end6, %if.end, %entry 24 ret i32 undef 25} 26 27; Function Attrs: inaccessiblememonly nounwind willreturn 28declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0 29 30attributes #0 = { inaccessiblememonly nounwind willreturn } 31