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; Example input for update_llc_test_checks (taken from CodeGen/X86/iabs.ll)
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefix=X86 --check-prefix=X86-NO-CMOV
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+cmov | FileCheck %s --check-prefix=X86 --check-prefix=X86-CMOV
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64
define i8 @test_i8(i8 %a) nounwind {
; X86-LABEL: test_i8:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl %eax, %ecx
; X86-NEXT: sarb $7, %cl
; X86-NEXT: xorb %cl, %al
; X86-NEXT: subb %cl, %al
; X86-NEXT: retl
;
; X64-LABEL: test_i8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: movl %eax, %ecx
; X64-NEXT: sarb $7, %cl
; X64-NEXT: xorb %cl, %al
; X64-NEXT: subb %cl, %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%tmp1neg = sub i8 0, %a
%b = icmp sgt i8 %a, -1
%abs = select i1 %b, i8 %a, i8 %tmp1neg
ret i8 %abs
}
define i16 @test_i16(i16 %a) nounwind {
; X86-NO-CMOV-LABEL: test_i16:
; X86-NO-CMOV: # %bb.0:
; X86-NO-CMOV-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NO-CMOV-NEXT: movswl %ax, %ecx
; X86-NO-CMOV-NEXT: sarl $15, %ecx
; X86-NO-CMOV-NEXT: xorl %ecx, %eax
; X86-NO-CMOV-NEXT: subl %ecx, %eax
; X86-NO-CMOV-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NO-CMOV-NEXT: retl
;
; X86-CMOV-LABEL: test_i16:
; X86-CMOV: # %bb.0:
; X86-CMOV-NEXT: movzwl {{[0-9]+}}(%esp), %ecx
; X86-CMOV-NEXT: movl %ecx, %eax
; X86-CMOV-NEXT: negw %ax
; X86-CMOV-NEXT: cmovsw %cx, %ax
; X86-CMOV-NEXT: retl
;
; X64-LABEL: test_i16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: negw %ax
; X64-NEXT: cmovsw %di, %ax
; X64-NEXT: retq
%tmp1neg = sub i16 0, %a
%b = icmp sgt i16 %a, -1
%abs = select i1 %b, i16 %a, i16 %tmp1neg
ret i16 %abs
}
define i32 @test_i32(i32 %a) nounwind {
; X86-NO-CMOV-LABEL: test_i32:
; X86-NO-CMOV: # %bb.0:
; X86-NO-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NO-CMOV-NEXT: movl %eax, %ecx
; X86-NO-CMOV-NEXT: sarl $31, %ecx
; X86-NO-CMOV-NEXT: xorl %ecx, %eax
; X86-NO-CMOV-NEXT: subl %ecx, %eax
; X86-NO-CMOV-NEXT: retl
;
; X86-CMOV-LABEL: test_i32:
; X86-CMOV: # %bb.0:
; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-CMOV-NEXT: movl %ecx, %eax
; X86-CMOV-NEXT: negl %eax
; X86-CMOV-NEXT: cmovsl %ecx, %eax
; X86-CMOV-NEXT: retl
;
; X64-LABEL: test_i32:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: negl %eax
; X64-NEXT: cmovsl %edi, %eax
; X64-NEXT: retq
%tmp1neg = sub i32 0, %a
%b = icmp sgt i32 %a, -1
%abs = select i1 %b, i32 %a, i32 %tmp1neg
ret i32 %abs
}
define i64 @test_i64(i64 %a) nounwind {
; X86-LABEL: test_i64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl %edx, %ecx
; X86-NEXT: sarl $31, %ecx
; X86-NEXT: xorl %ecx, %edx
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: xorl %ecx, %eax
; X86-NEXT: subl %ecx, %eax
; X86-NEXT: sbbl %ecx, %edx
; X86-NEXT: retl
;
; X64-LABEL: test_i64:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: negq %rax
; X64-NEXT: cmovsq %rdi, %rax
; X64-NEXT: retq
%tmp1neg = sub i64 0, %a
%b = icmp sgt i64 %a, -1
%abs = select i1 %b, i64 %a, i64 %tmp1neg
ret i64 %abs
}
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