; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s ; These tests use cmp+adc/sbb in place of test+set+add/sub. Should this transform ; be enabled by micro-architecture rather than as part of generic lowering/isel? define i8 @test1(i8 %a, i8 %b) nounwind { ; CHECK-LABEL: test1: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %esi, %eax ; CHECK-NEXT: cmpb %al, %dil ; CHECK-NEXT: adcb $0, %al ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq %cmp = icmp ult i8 %a, %b %cond = zext i1 %cmp to i8 %add = add i8 %cond, %b ret i8 %add } define i32 @test2(i32 %a, i32 %b) nounwind { ; CHECK-LABEL: test2: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %esi, %eax ; CHECK-NEXT: cmpl %esi, %edi ; CHECK-NEXT: adcl $0, %eax ; CHECK-NEXT: retq %cmp = icmp ult i32 %a, %b %cond = zext i1 %cmp to i32 %add = add i32 %cond, %b ret i32 %add } define i64 @test3(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: test3: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rsi, %rax ; CHECK-NEXT: cmpq %rsi, %rdi ; CHECK-NEXT: adcq $0, %rax ; CHECK-NEXT: retq %cmp = icmp ult i64 %a, %b %conv = zext i1 %cmp to i64 %add = add i64 %conv, %b ret i64 %add } define i8 @test4(i8 %a, i8 %b) nounwind { ; CHECK-LABEL: test4: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %esi, %eax ; CHECK-NEXT: cmpb %al, %dil ; CHECK-NEXT: sbbb $0, %al ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq %cmp = icmp ult i8 %a, %b %cond = zext i1 %cmp to i8 %sub = sub i8 %b, %cond ret i8 %sub } define i32 @test5(i32 %a, i32 %b) nounwind { ; CHECK-LABEL: test5: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %esi, %eax ; CHECK-NEXT: cmpl %esi, %edi ; CHECK-NEXT: sbbl $0, %eax ; CHECK-NEXT: retq %cmp = icmp ult i32 %a, %b %cond = zext i1 %cmp to i32 %sub = sub i32 %b, %cond ret i32 %sub } define i64 @test6(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: test6: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rsi, %rax ; CHECK-NEXT: cmpq %rsi, %rdi ; CHECK-NEXT: sbbq $0, %rax ; CHECK-NEXT: retq %cmp = icmp ult i64 %a, %b %conv = zext i1 %cmp to i64 %sub = sub i64 %b, %conv ret i64 %sub } define i8 @test7(i8 %a, i8 %b) nounwind { ; CHECK-LABEL: test7: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %esi, %eax ; CHECK-NEXT: cmpb %al, %dil ; CHECK-NEXT: adcb $0, %al ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq %cmp = icmp ult i8 %a, %b %cond = sext i1 %cmp to i8 %sub = sub i8 %b, %cond ret i8 %sub } define i32 @test8(i32 %a, i32 %b) nounwind { ; CHECK-LABEL: test8: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %esi, %eax ; CHECK-NEXT: cmpl %esi, %edi ; CHECK-NEXT: adcl $0, %eax ; CHECK-NEXT: retq %cmp = icmp ult i32 %a, %b %cond = sext i1 %cmp to i32 %sub = sub i32 %b, %cond ret i32 %sub } define i64 @test9(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: test9: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rsi, %rax ; CHECK-NEXT: cmpq %rsi, %rdi ; CHECK-NEXT: adcq $0, %rax ; CHECK-NEXT: retq %cmp = icmp ult i64 %a, %b %conv = sext i1 %cmp to i64 %sub = sub i64 %b, %conv ret i64 %sub }