; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --include-generated-funcs --version 2 ; RUN: llc -mtriple=riscv64 -riscv-enable-copy-propagation -enable-machine-outliner -verify-machineinstrs < %s \ ; RUN: | FileCheck %s -check-prefix=RV64I ; The outlined function produced by this test case contains a register to ; register copy, which is at risk of being removed by MachineCopyPropagation ; if it can't see that the copy is used. At the time of writing this test ; case, MCP will remove the copy if it is run after the machine outliner. define signext i32 @nge(i32 signext %a, i32 signext %b) nounwind { entry: %cmp = icmp sge i32 %a, %b %conv.neg = sext i1 %cmp to i32 ret i32 %conv.neg } define signext i32 @ngt(i32 signext %a, i32 signext %b) nounwind { entry: %cmp = icmp sgt i32 %a, %b %conv.neg = sext i1 %cmp to i32 ret i32 %conv.neg } define signext i32 @nle(i32 signext %a, i32 signext %b) nounwind { entry: %cmp = icmp sle i32 %a, %b %conv.neg = sext i1 %cmp to i32 ret i32 %conv.neg } define signext i32 @nlt(i32 signext %a, i32 signext %b) nounwind { entry: %cmp = icmp slt i32 %a, %b %conv.neg = sext i1 %cmp to i32 ret i32 %conv.neg } define signext i32 @main() nounwind { entry: %call = tail call signext i32 @nge(i32 signext -2147483648, i32 signext 2147483647) %cmp.not = icmp eq i32 %call, 0 br i1 %cmp.not, label %if.end, label %if.then if.then: tail call void @abort() unreachable if.end: %call1 = tail call signext i32 @nge(i32 signext 2147483647, i32 signext -2147483648) %cmp2.not = icmp eq i32 %call1, -1 br i1 %cmp2.not, label %if.end4, label %if.then3 if.then3: tail call void @abort() unreachable if.end4: %call5 = tail call signext i32 @ngt(i32 signext -2147483648, i32 signext 2147483647) %cmp6.not = icmp eq i32 %call5, 0 br i1 %cmp6.not, label %if.end8, label %if.then7 if.then7: tail call void @abort() unreachable if.end8: %call9 = tail call signext i32 @ngt(i32 signext 2147483647, i32 signext -2147483648) %cmp10.not = icmp eq i32 %call9, -1 br i1 %cmp10.not, label %if.end12, label %if.then11 if.then11: tail call void @abort() unreachable if.end12: %call13 = tail call signext i32 @nle(i32 signext -2147483648, i32 signext 2147483647) %cmp14.not = icmp eq i32 %call13, -1 br i1 %cmp14.not, label %if.end16, label %if.then15 if.then15: tail call void @abort() unreachable if.end16: %call17 = tail call signext i32 @nle(i32 signext 2147483647, i32 signext -2147483648) %cmp18.not = icmp eq i32 %call17, 0 br i1 %cmp18.not, label %if.end20, label %if.then19 if.then19: tail call void @abort() unreachable if.end20: %call21 = tail call signext i32 @nlt(i32 signext -2147483648, i32 signext 2147483647) %cmp22.not = icmp eq i32 %call21, -1 br i1 %cmp22.not, label %if.end24, label %if.then23 if.then23: tail call void @abort() unreachable if.end24: %call25 = tail call signext i32 @nlt(i32 signext 2147483647, i32 signext -2147483648) %cmp26.not = icmp eq i32 %call25, 0 br i1 %cmp26.not, label %if.end28, label %if.then27 if.then27: tail call void @abort() unreachable if.end28: tail call void @exit(i32 signext 0) unreachable } declare void @abort() noreturn declare void @exit(i32 signext) noreturn ; RV64I-LABEL: nge: ; RV64I: # %bb.0: # %entry ; RV64I-NEXT: slt a0, a0, a1 ; RV64I-NEXT: addi a0, a0, -1 ; RV64I-NEXT: ret ; ; RV64I-LABEL: ngt: ; RV64I: # %bb.0: # %entry ; RV64I-NEXT: slt a0, a1, a0 ; RV64I-NEXT: neg a0, a0 ; RV64I-NEXT: ret ; ; RV64I-LABEL: nle: ; RV64I: # %bb.0: # %entry ; RV64I-NEXT: slt a0, a1, a0 ; RV64I-NEXT: addi a0, a0, -1 ; RV64I-NEXT: ret ; ; RV64I-LABEL: nlt: ; RV64I: # %bb.0: # %entry ; RV64I-NEXT: slt a0, a0, a1 ; RV64I-NEXT: neg a0, a0 ; RV64I-NEXT: ret ; ; RV64I-LABEL: main: ; RV64I: # %bb.0: # %entry ; RV64I-NEXT: addi sp, sp, -32 ; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill ; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill ; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill ; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0 ; RV64I-NEXT: call nge ; RV64I-NEXT: bnez a0, .LBB4_9 ; RV64I-NEXT: # %bb.1: # %if.end ; RV64I-NEXT: lui a1, 524288 ; RV64I-NEXT: mv a0, s0 ; RV64I-NEXT: call nge ; RV64I-NEXT: li a1, -1 ; RV64I-NEXT: bne a0, a1, .LBB4_9 ; RV64I-NEXT: # %bb.2: # %if.end4 ; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0 ; RV64I-NEXT: call ngt ; RV64I-NEXT: bnez a0, .LBB4_9 ; RV64I-NEXT: # %bb.3: # %if.end8 ; RV64I-NEXT: lui a1, 524288 ; RV64I-NEXT: mv a0, s0 ; RV64I-NEXT: call ngt ; RV64I-NEXT: li s1, -1 ; RV64I-NEXT: bne a0, s1, .LBB4_9 ; RV64I-NEXT: # %bb.4: # %if.end12 ; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0 ; RV64I-NEXT: call nle ; RV64I-NEXT: bne a0, s1, .LBB4_9 ; RV64I-NEXT: # %bb.5: # %if.end16 ; RV64I-NEXT: lui a1, 524288 ; RV64I-NEXT: mv a0, s0 ; RV64I-NEXT: call nle ; RV64I-NEXT: bnez a0, .LBB4_9 ; RV64I-NEXT: # %bb.6: # %if.end20 ; RV64I-NEXT: call t0, OUTLINED_FUNCTION_0 ; RV64I-NEXT: call nlt ; RV64I-NEXT: li a1, -1 ; RV64I-NEXT: bne a0, a1, .LBB4_9 ; RV64I-NEXT: # %bb.7: # %if.end24 ; RV64I-NEXT: lui a1, 524288 ; RV64I-NEXT: mv a0, s0 ; RV64I-NEXT: call nlt ; RV64I-NEXT: bnez a0, .LBB4_9 ; RV64I-NEXT: # %bb.8: # %if.end28 ; RV64I-NEXT: call exit ; RV64I-NEXT: .LBB4_9: # %if.then ; RV64I-NEXT: call abort ; ; RV64I-LABEL: OUTLINED_FUNCTION_0: ; RV64I: # %bb.0: ; RV64I-NEXT: lui s0, 524288 ; RV64I-NEXT: addiw s0, s0, -1 ; RV64I-NEXT: lui a0, 524288 ; RV64I-NEXT: mv a1, s0 ; RV64I-NEXT: jr t0