forked from OSchip/llvm-project
[X86] Add more tests for D111858. NFC
Add tests with sub instead of neg.
This commit is contained in:
Craig Topper
parent
da07942834
commit
f6cd43c098
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@ -154,3 +154,170 @@ define i128 @neg_abs_i128(i128 %x) nounwind {
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%neg = sub nsw i128 0, %abs
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ret i128 %neg
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}
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define i8 @sub_abs_i8(i8 %x, i8 %y) nounwind {
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; X86-LABEL: sub_abs_i8:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %al
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl %ecx, %edx
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; X86-NEXT: sarb $7, %dl
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; X86-NEXT: addb %dl, %cl
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; X86-NEXT: xorb %dl, %cl
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; X86-NEXT: subb %cl, %al
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; X86-NEXT: retl
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;
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; X64-LABEL: sub_abs_i8:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %eax
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; X64-NEXT: movl %edi, %ecx
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; X64-NEXT: sarb $7, %cl
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; X64-NEXT: addb %cl, %dil
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; X64-NEXT: xorb %cl, %dil
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; X64-NEXT: subb %dil, %al
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; X64-NEXT: # kill: def $al killed $al killed $eax
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; X64-NEXT: retq
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%abs = tail call i8 @llvm.abs.i8(i8 %x, i1 false)
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%neg = sub nsw i8 %y, %abs
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ret i8 %neg
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}
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define i16 @sub_abs_i16(i16 %x, i16 %y) nounwind {
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; X86-LABEL: sub_abs_i16:
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; X86: # %bb.0:
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movswl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl %ecx, %edx
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; X86-NEXT: sarl $15, %edx
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; X86-NEXT: addl %edx, %ecx
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; X86-NEXT: xorl %edx, %ecx
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; X86-NEXT: subl %ecx, %eax
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; X86-NEXT: # kill: def $ax killed $ax killed $eax
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; X86-NEXT: retl
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;
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; X64-LABEL: sub_abs_i16:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %eax
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; X64-NEXT: movl %edi, %ecx
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; X64-NEXT: negw %cx
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; X64-NEXT: cmovsw %di, %cx
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; X64-NEXT: subl %ecx, %eax
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; X64-NEXT: # kill: def $ax killed $ax killed $eax
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; X64-NEXT: retq
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%abs = tail call i16 @llvm.abs.i16(i16 %x, i1 false)
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%neg = sub i16 %y, %abs
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ret i16 %neg
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}
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define i32 @sub_abs_i32(i32 %x, i32 %y) nounwind {
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; X86-LABEL: sub_abs_i32:
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; X86: # %bb.0:
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl %ecx, %edx
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; X86-NEXT: sarl $31, %edx
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; X86-NEXT: addl %edx, %ecx
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; X86-NEXT: xorl %edx, %ecx
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; X86-NEXT: subl %ecx, %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: sub_abs_i32:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %eax
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; X64-NEXT: movl %edi, %ecx
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; X64-NEXT: negl %ecx
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; X64-NEXT: cmovsl %edi, %ecx
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; X64-NEXT: subl %ecx, %eax
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; X64-NEXT: retq
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%abs = tail call i32 @llvm.abs.i32(i32 %x, i1 false)
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%neg = sub i32 %y, %abs
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ret i32 %neg
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}
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define i64 @sub_abs_i64(i64 %x, i64 %y) nounwind {
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; X86-LABEL: sub_abs_i64:
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; X86: # %bb.0:
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; X86-NEXT: pushl %edi
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; X86-NEXT: pushl %esi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl %ecx, %esi
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; X86-NEXT: sarl $31, %esi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X86-NEXT: addl %esi, %edi
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; X86-NEXT: adcl %esi, %ecx
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; X86-NEXT: xorl %esi, %ecx
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; X86-NEXT: xorl %esi, %edi
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; X86-NEXT: subl %edi, %eax
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; X86-NEXT: sbbl %ecx, %edx
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; X86-NEXT: popl %esi
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; X86-NEXT: popl %edi
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; X86-NEXT: retl
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;
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; X64-LABEL: sub_abs_i64:
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; X64: # %bb.0:
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; X64-NEXT: movq %rsi, %rax
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; X64-NEXT: movq %rdi, %rcx
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; X64-NEXT: negq %rcx
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; X64-NEXT: cmovsq %rdi, %rcx
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; X64-NEXT: subq %rcx, %rax
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; X64-NEXT: retq
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%abs = tail call i64 @llvm.abs.i64(i64 %x, i1 false)
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%neg = sub i64 %y, %abs
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ret i64 %neg
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}
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define i128 @sub_abs_i128(i128 %x, i128 %y) nounwind {
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; X86-LABEL: sub_abs_i128:
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; X86: # %bb.0:
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; X86-NEXT: pushl %edi
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; X86-NEXT: pushl %esi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl %eax, %ecx
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; X86-NEXT: sarl $31, %ecx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-NEXT: addl %ecx, %edx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-NEXT: adcl %ecx, %esi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X86-NEXT: adcl %ecx, %edi
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; X86-NEXT: adcl %ecx, %eax
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; X86-NEXT: xorl %ecx, %eax
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; X86-NEXT: xorl %ecx, %edi
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; X86-NEXT: xorl %ecx, %esi
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; X86-NEXT: xorl %ecx, %edx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: subl %edx, %ecx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-NEXT: sbbl %esi, %edx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-NEXT: sbbl %edi, %esi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X86-NEXT: sbbl %eax, %edi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl %ecx, (%eax)
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; X86-NEXT: movl %edx, 4(%eax)
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; X86-NEXT: movl %esi, 8(%eax)
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; X86-NEXT: movl %edi, 12(%eax)
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; X86-NEXT: popl %esi
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; X86-NEXT: popl %edi
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; X86-NEXT: retl $4
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;
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; X64-LABEL: sub_abs_i128:
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; X64: # %bb.0:
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; X64-NEXT: movq %rdx, %rax
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; X64-NEXT: movq %rsi, %rdx
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; X64-NEXT: sarq $63, %rdx
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; X64-NEXT: addq %rdx, %rdi
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; X64-NEXT: adcq %rdx, %rsi
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; X64-NEXT: xorq %rdx, %rsi
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; X64-NEXT: xorq %rdx, %rdi
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; X64-NEXT: subq %rdi, %rax
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; X64-NEXT: sbbq %rsi, %rcx
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; X64-NEXT: movq %rcx, %rdx
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; X64-NEXT: retq
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%abs = tail call i128 @llvm.abs.i128(i128 %x, i1 false)
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%neg = sub i128 %y, %abs
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ret i128 %neg
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}
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