xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/add-of-carry.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86 | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; <rdar://problem/8449754>
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine i32 @test1(i32 %sum, i32 %x) nounwind readnone ssp {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test1:
7*9880d681SAndroid Build Coastguard Worker; CHECK: movl
8*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: addl
9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: adcl $0
10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret
11*9880d681SAndroid Build Coastguard Worker  %add4 = add i32 %x, %sum
12*9880d681SAndroid Build Coastguard Worker  %cmp = icmp ult i32 %add4, %x
13*9880d681SAndroid Build Coastguard Worker  %inc = zext i1 %cmp to i32
14*9880d681SAndroid Build Coastguard Worker  %z.0 = add i32 %add4, %inc
15*9880d681SAndroid Build Coastguard Worker  ret i32 %z.0
16*9880d681SAndroid Build Coastguard Worker}
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Worker; <rdar://problem/12579915>
19*9880d681SAndroid Build Coastguard Workerdefine i32 @test2(i32 %x, i32 %y, i32 %res) nounwind uwtable readnone ssp {
20*9880d681SAndroid Build Coastguard Workerentry:
21*9880d681SAndroid Build Coastguard Worker  %cmp = icmp ugt i32 %x, %y
22*9880d681SAndroid Build Coastguard Worker  %dec = sext i1 %cmp to i32
23*9880d681SAndroid Build Coastguard Worker  %dec.res = add nsw i32 %dec, %res
24*9880d681SAndroid Build Coastguard Worker  ret i32 %dec.res
25*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test2:
26*9880d681SAndroid Build Coastguard Worker; CHECK: cmpl
27*9880d681SAndroid Build Coastguard Worker; CHECK: sbbl
28*9880d681SAndroid Build Coastguard Worker; CHECK: ret
29*9880d681SAndroid Build Coastguard Worker}
30