xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/iabs.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86-64 | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker;; Integer absolute value, should produce something at least as good as:
4*9880d681SAndroid Build Coastguard Worker;;       movl   %edi, %eax
5*9880d681SAndroid Build Coastguard Worker;;       negl   %eax
6*9880d681SAndroid Build Coastguard Worker;;       cmovll %edi, %eax
7*9880d681SAndroid Build Coastguard Worker;;       ret
8*9880d681SAndroid Build Coastguard Worker; rdar://10695237
9*9880d681SAndroid Build Coastguard Workerdefine i32 @test(i32 %a) nounwind {
10*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test:
11*9880d681SAndroid Build Coastguard Worker; CHECK: mov
12*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: neg
13*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: cmov
14*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret
15*9880d681SAndroid Build Coastguard Worker        %tmp1neg = sub i32 0, %a
16*9880d681SAndroid Build Coastguard Worker        %b = icmp sgt i32 %a, -1
17*9880d681SAndroid Build Coastguard Worker        %abs = select i1 %b, i32 %a, i32 %tmp1neg
18*9880d681SAndroid Build Coastguard Worker        ret i32 %abs
19*9880d681SAndroid Build Coastguard Worker}
20*9880d681SAndroid Build Coastguard Worker
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