; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -o - %s -mtriple=x86_64-- | FileCheck %s --check-prefixes=CHECK,NOBMI
; RUN: llc -o - %s -mtriple=x86_64-- -mattr=+bmi | FileCheck %s --check-prefixes=CHECK,BMI
;
; test that masked-merge code is generated as "xor;and;xor" sequence or
; "andn ; and; or" if and-not is available.
define i32 @masked_merge0(i32 %a0, i32 %a1, i32 %a2) {
; NOBMI-LABEL: masked_merge0:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %esi, %eax
; NOBMI-NEXT: xorl %edx, %eax
; NOBMI-NEXT: andl %edi, %eax
; NOBMI-NEXT: xorl %edx, %eax
; NOBMI-NEXT: retq
;
; BMI-LABEL: masked_merge0:
; BMI: # %bb.0:
; BMI-NEXT: andl %edi, %esi
; BMI-NEXT: andnl %edx, %edi, %eax
; BMI-NEXT: orl %esi, %eax
; BMI-NEXT: retq
%and0 = and i32 %a0, %a1
%not = xor i32 %a0, -1
%and1 = and i32 %not, %a2
%or = or i32 %and0, %and1
ret i32 %or
}
define i16 @masked_merge1(i16 %a0, i16 %a1, i16 %a2) {
; NOBMI-LABEL: masked_merge1:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %edi, %eax
; NOBMI-NEXT: andl %edi, %esi
; NOBMI-NEXT: notl %eax
; NOBMI-NEXT: andl %edx, %eax
; NOBMI-NEXT: orl %esi, %eax
; NOBMI-NEXT: # kill: def $ax killed $ax killed $eax
; NOBMI-NEXT: retq
;
; BMI-LABEL: masked_merge1:
; BMI: # %bb.0:
; BMI-NEXT: andl %edi, %esi
; BMI-NEXT: andnl %edx, %edi, %eax
; BMI-NEXT: orl %esi, %eax
; BMI-NEXT: # kill: def $ax killed $ax killed $eax
; BMI-NEXT: retq
%and0 = and i16 %a0, %a1
%not = xor i16 %a0, -1
%and1 = and i16 %a2, %not
%or = or i16 %and0, %and1
ret i16 %or
}
define i8 @masked_merge2(i8 %a0, i8 %a1, i8 %a2) {
; NOBMI-LABEL: masked_merge2:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %esi, %eax
; NOBMI-NEXT: # kill: def $al killed $al killed $eax
; NOBMI-NEXT: retq
;
; BMI-LABEL: masked_merge2:
; BMI: # %bb.0:
; BMI-NEXT: movl %edi, %eax
; BMI-NEXT: notb %al
; BMI-NEXT: andb %sil, %al
; BMI-NEXT: andb %dil, %sil
; BMI-NEXT: orb %sil, %al
; BMI-NEXT: retq
%not = xor i8 %a0, -1
%and0 = and i8 %not, %a1
%and1 = and i8 %a1, %a0
%or = or i8 %and0, %and1
ret i8 %or
}
define i64 @masked_merge3(i64 %a0, i64 %a1, i64 %a2) {
; NOBMI-LABEL: masked_merge3:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movq %rsi, %rax
; NOBMI-NEXT: notq %rdx
; NOBMI-NEXT: xorq %rdx, %rax
; NOBMI-NEXT: notq %rax
; NOBMI-NEXT: andq %rdi, %rax
; NOBMI-NEXT: xorq %rdx, %rax
; NOBMI-NEXT: retq
;
; BMI-LABEL: masked_merge3:
; BMI: # %bb.0:
; BMI-NEXT: notq %rdx
; BMI-NEXT: andnq %rdx, %rdi, %rcx
; BMI-NEXT: andnq %rdi, %rsi, %rax
; BMI-NEXT: orq %rcx, %rax
; BMI-NEXT: retq
%v0 = xor i64 %a1, -1
%v1 = xor i64 %a2, -1
%not = xor i64 %a0, -1
%and0 = and i64 %not, %v1
%and1 = and i64 %v0, %a0
%or = or i64 %and0, %and1
ret i64 %or
}
; not a masked merge: there is no `not` operation.
define i32 @not_a_masked_merge0(i32 %a0, i32 %a1, i32 %a2) {
; CHECK-LABEL: not_a_masked_merge0:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: andl %edi, %esi
; CHECK-NEXT: negl %eax
; CHECK-NEXT: andl %edx, %eax
; CHECK-NEXT: orl %esi, %eax
; CHECK-NEXT: retq
%and0 = and i32 %a0, %a1
%not_a_not = sub i32 0, %a0
%and1 = and i32 %not_a_not, %a2
%or = or i32 %and0, %and1
ret i32 %or
}
; not a masked merge: `not` operand does not match another `and`-operand.
define i32 @not_a_masked_merge1(i32 %a0, i32 %a1, i32 %a2, i32 %a3) {
; NOBMI-LABEL: not_a_masked_merge1:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %ecx, %eax
; NOBMI-NEXT: andl %esi, %edi
; NOBMI-NEXT: notl %eax
; NOBMI-NEXT: andl %edx, %eax
; NOBMI-NEXT: orl %edi, %eax
; NOBMI-NEXT: retq
;
; BMI-LABEL: not_a_masked_merge1:
; BMI: # %bb.0:
; BMI-NEXT: andl %esi, %edi
; BMI-NEXT: andnl %edx, %ecx, %eax
; BMI-NEXT: orl %edi, %eax
; BMI-NEXT: retq
%and0 = and i32 %a0, %a1
%not = xor i32 %a3, -1
%and1 = and i32 %not, %a2
%or = or i32 %and0, %and1
ret i32 %or
}
; not a masked merge: one of the operands of `or` is not an `and`.
define i32 @not_a_masked_merge2(i32 %a0, i32 %a1, i32 %a2) {
; NOBMI-LABEL: not_a_masked_merge2:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %edi, %eax
; NOBMI-NEXT: orl %edi, %esi
; NOBMI-NEXT: notl %eax
; NOBMI-NEXT: andl %edx, %eax
; NOBMI-NEXT: orl %esi, %eax
; NOBMI-NEXT: retq
;
; BMI-LABEL: not_a_masked_merge2:
; BMI: # %bb.0:
; BMI-NEXT: orl %edi, %esi
; BMI-NEXT: andnl %edx, %edi, %eax
; BMI-NEXT: orl %esi, %eax
; BMI-NEXT: retq
%not_an_and0 = or i32 %a0, %a1
%not = xor i32 %a0, -1
%and1 = and i32 %not, %a2
%or = or i32 %not_an_and0, %and1
ret i32 %or
}
; not a masked merge: one of the operands of `or` is not an `and`.
define i32 @not_a_masked_merge3(i32 %a0, i32 %a1, i32 %a2) {
; CHECK-LABEL: not_a_masked_merge3:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %edx, %eax
; CHECK-NEXT: andl %edi, %esi
; CHECK-NEXT: xorl %edi, %eax
; CHECK-NEXT: notl %eax
; CHECK-NEXT: orl %esi, %eax
; CHECK-NEXT: retq
%and0 = and i32 %a0, %a1
%not = xor i32 %a0, -1
%not_an_and1 = xor i32 %not, %a2
%or = or i32 %and0, %not_an_and1
ret i32 %or
}
; not a masked merge: `not` operand must not be on same `and`.
define i32 @not_a_masked_merge4(i32 %a0, i32 %a1, i32 %a2) {
; CHECK-LABEL: not_a_masked_merge4:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: andl %esi, %eax
; CHECK-NEXT: retq
%and0 = and i32 %a0, %a1
%not = xor i32 %a2, -1
%and1 = and i32 %not, %a2
%or = or i32 %and0, %and1
ret i32 %or
}
; should not transform when operands have multiple users.
define i32 @masked_merge_no_transform0(i32 %a0, i32 %a1, i32 %a2, ptr %p1) {
; NOBMI-LABEL: masked_merge_no_transform0:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %edi, %eax
; NOBMI-NEXT: andl %edi, %esi
; NOBMI-NEXT: notl %eax
; NOBMI-NEXT: andl %edx, %eax
; NOBMI-NEXT: orl %esi, %eax
; NOBMI-NEXT: movl %esi, (%rcx)
; NOBMI-NEXT: retq
;
; BMI-LABEL: masked_merge_no_transform0:
; BMI: # %bb.0:
; BMI-NEXT: andl %edi, %esi
; BMI-NEXT: andnl %edx, %edi, %eax
; BMI-NEXT: orl %esi, %eax
; BMI-NEXT: movl %esi, (%rcx)
; BMI-NEXT: retq
%and0 = and i32 %a0, %a1
%not = xor i32 %a0, -1
%and1 = and i32 %not, %a2
%or = or i32 %and0, %and1
store i32 %and0, ptr %p1
ret i32 %or
}
; should not transform when operands have multiple users.
define i32 @masked_merge_no_transform1(i32 %a0, i32 %a1, i32 %a2, ptr %p1) {
; NOBMI-LABEL: masked_merge_no_transform1:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %edx, %eax
; NOBMI-NEXT: andl %edi, %esi
; NOBMI-NEXT: notl %edi
; NOBMI-NEXT: andl %edi, %eax
; NOBMI-NEXT: orl %esi, %eax
; NOBMI-NEXT: movl %edi, (%rcx)
; NOBMI-NEXT: retq
;
; BMI-LABEL: masked_merge_no_transform1:
; BMI: # %bb.0:
; BMI-NEXT: andl %edi, %esi
; BMI-NEXT: andnl %edx, %edi, %eax
; BMI-NEXT: notl %edi
; BMI-NEXT: orl %esi, %eax
; BMI-NEXT: movl %edi, (%rcx)
; BMI-NEXT: retq
%and0 = and i32 %a0, %a1
%not = xor i32 %a0, -1
%and1 = and i32 %not, %a2
%or = or i32 %and0, %and1
store i32 %not, ptr %p1
ret i32 %or
}
; should not transform when operands have multiple users.
define i32 @masked_merge_no_transform2(i32 %a0, i32 %a1, i32 %a2, ptr %p1) {
; NOBMI-LABEL: masked_merge_no_transform2:
; NOBMI: # %bb.0:
; NOBMI-NEXT: movl %esi, %eax
; NOBMI-NEXT: andl %edi, %eax
; NOBMI-NEXT: notl %edi
; NOBMI-NEXT: andl %edx, %edi
; NOBMI-NEXT: orl %edi, %eax
; NOBMI-NEXT: movl %edi, (%rcx)
; NOBMI-NEXT: retq
;
; BMI-LABEL: masked_merge_no_transform2:
; BMI: # %bb.0:
; BMI-NEXT: movl %esi, %eax
; BMI-NEXT: andl %edi, %eax
; BMI-NEXT: andnl %edx, %edi, %edx
; BMI-NEXT: orl %edx, %eax
; BMI-NEXT: movl %edx, (%rcx)
; BMI-NEXT: retq
%and0 = and i32 %a0, %a1
%not = xor i32 %a0, -1
%and1 = and i32 %not, %a2
%or = or i32 %and0, %and1
store i32 %and1, ptr %p1
ret i32 %or
}
Codebase Browser
llvm