blob: 90d1c56d1cec7d3f5152402cc1ae1e5fd54a99f2 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=-bmi < %s | FileCheck %s --check-prefix=CHECK-NOBMI
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi < %s | FileCheck %s --check-prefix=CHECK-BMI
; https://bugs.llvm.org/show_bug.cgi?id=37104
; X: [bit2] [bit0]
; Y: [bit3] [bit1]
define i8 @out8_constmask(i8 %x, i8 %y) {
; CHECK-NOBMI-LABEL: out8_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: andb $85, %dil
; CHECK-NOBMI-NEXT: andb $-86, %sil
; CHECK-NOBMI-NEXT: orb %dil, %sil
; CHECK-NOBMI-NEXT: movl %esi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: out8_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: andb $85, %dil
; CHECK-BMI-NEXT: andb $-86, %sil
; CHECK-BMI-NEXT: orb %dil, %sil
; CHECK-BMI-NEXT: movl %esi, %eax
; CHECK-BMI-NEXT: retq
%mx = and i8 %x, 85
%my = and i8 %y, -86
%r = or i8 %mx, %my
ret i8 %r
}
define i16 @out16_constmask(i16 %x, i16 %y) {
; CHECK-NOBMI-LABEL: out16_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: # kill: def $esi killed $esi def $rsi
; CHECK-NOBMI-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NOBMI-NEXT: andl $21845, %edi # imm = 0x5555
; CHECK-NOBMI-NEXT: andl $-21846, %esi # imm = 0xAAAA
; CHECK-NOBMI-NEXT: leal (%rsi,%rdi), %eax
; CHECK-NOBMI-NEXT: # kill: def $ax killed $ax killed $eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: out16_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: # kill: def $esi killed $esi def $rsi
; CHECK-BMI-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-BMI-NEXT: andl $21845, %edi # imm = 0x5555
; CHECK-BMI-NEXT: andl $-21846, %esi # imm = 0xAAAA
; CHECK-BMI-NEXT: leal (%rsi,%rdi), %eax
; CHECK-BMI-NEXT: # kill: def $ax killed $ax killed $eax
; CHECK-BMI-NEXT: retq
%mx = and i16 %x, 21845
%my = and i16 %y, -21846
%r = or i16 %mx, %my
ret i16 %r
}
define i32 @out32_constmask(i32 %x, i32 %y) {
; CHECK-NOBMI-LABEL: out32_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: # kill: def $esi killed $esi def $rsi
; CHECK-NOBMI-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NOBMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-NOBMI-NEXT: andl $-1431655766, %esi # imm = 0xAAAAAAAA
; CHECK-NOBMI-NEXT: leal (%rsi,%rdi), %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: out32_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: # kill: def $esi killed $esi def $rsi
; CHECK-BMI-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-BMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-BMI-NEXT: andl $-1431655766, %esi # imm = 0xAAAAAAAA
; CHECK-BMI-NEXT: leal (%rsi,%rdi), %eax
; CHECK-BMI-NEXT: retq
%mx = and i32 %x, 1431655765
%my = and i32 %y, -1431655766
%r = or i32 %mx, %my
ret i32 %r
}
define i64 @out64_constmask(i64 %x, i64 %y) {
; CHECK-NOBMI-LABEL: out64_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: movabsq $6148914691236517205, %rcx # imm = 0x5555555555555555
; CHECK-NOBMI-NEXT: andq %rdi, %rcx
; CHECK-NOBMI-NEXT: movabsq $-6148914691236517206, %rax # imm = 0xAAAAAAAAAAAAAAAA
; CHECK-NOBMI-NEXT: andq %rsi, %rax
; CHECK-NOBMI-NEXT: orq %rcx, %rax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: out64_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: movabsq $6148914691236517205, %rcx # imm = 0x5555555555555555
; CHECK-BMI-NEXT: andq %rdi, %rcx
; CHECK-BMI-NEXT: movabsq $-6148914691236517206, %rax # imm = 0xAAAAAAAAAAAAAAAA
; CHECK-BMI-NEXT: andq %rsi, %rax
; CHECK-BMI-NEXT: orq %rcx, %rax
; CHECK-BMI-NEXT: retq
%mx = and i64 %x, 6148914691236517205
%my = and i64 %y, -6148914691236517206
%r = or i64 %mx, %my
ret i64 %r
}
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Should be the same as the previous one.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
define i8 @in8_constmask(i8 %x, i8 %y) {
; CHECK-NOBMI-LABEL: in8_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: andb $85, %dil
; CHECK-NOBMI-NEXT: xorb %dil, %sil
; CHECK-NOBMI-NEXT: movl %esi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in8_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: andb $85, %dil
; CHECK-BMI-NEXT: xorb %dil, %sil
; CHECK-BMI-NEXT: movl %esi, %eax
; CHECK-BMI-NEXT: retq
%n0 = xor i8 %x, %y
%n1 = and i8 %n0, 85
%r = xor i8 %n1, %y
ret i8 %r
}
define i16 @in16_constmask(i16 %x, i16 %y) {
; CHECK-NOBMI-LABEL: in16_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: andl $21845, %edi # imm = 0x5555
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: movl %edi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in16_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: andl $21845, %edi # imm = 0x5555
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: movl %edi, %eax
; CHECK-BMI-NEXT: retq
%n0 = xor i16 %x, %y
%n1 = and i16 %n0, 21845
%r = xor i16 %n1, %y
ret i16 %r
}
define i32 @in32_constmask(i32 %x, i32 %y) {
; CHECK-NOBMI-LABEL: in32_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: movl %edi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in32_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: movl %edi, %eax
; CHECK-BMI-NEXT: retq
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
%r = xor i32 %n1, %y
ret i32 %r
}
define i64 @in64_constmask(i64 %x, i64 %y) {
; CHECK-NOBMI-LABEL: in64_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorq %rsi, %rdi
; CHECK-NOBMI-NEXT: movabsq $6148914691236517205, %rax # imm = 0x5555555555555555
; CHECK-NOBMI-NEXT: andq %rdi, %rax
; CHECK-NOBMI-NEXT: xorq %rsi, %rax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in64_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorq %rsi, %rdi
; CHECK-BMI-NEXT: movabsq $6148914691236517205, %rax # imm = 0x5555555555555555
; CHECK-BMI-NEXT: andq %rdi, %rax
; CHECK-BMI-NEXT: xorq %rsi, %rax
; CHECK-BMI-NEXT: retq
%n0 = xor i64 %x, %y
%n1 = and i64 %n0, 6148914691236517205
%r = xor i64 %n1, %y
ret i64 %r
}
; ============================================================================ ;
; Constant Commutativity tests.
; ============================================================================ ;
define i32 @in_constmask_commutativity_0_1(i32 %x, i32 %y) {
; CHECK-NOBMI-LABEL: in_constmask_commutativity_0_1:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: movl %edi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in_constmask_commutativity_0_1:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: movl %edi, %eax
; CHECK-BMI-NEXT: retq
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
%r = xor i32 %y, %n1 ; swapped
ret i32 %r
}
define i32 @in_constmask_commutativity_1_0(i32 %x, i32 %y) {
; CHECK-NOBMI-LABEL: in_constmask_commutativity_1_0:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorl %edi, %esi
; CHECK-NOBMI-NEXT: andl $1431655765, %esi # imm = 0x55555555
; CHECK-NOBMI-NEXT: xorl %edi, %esi
; CHECK-NOBMI-NEXT: movl %esi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in_constmask_commutativity_1_0:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorl %edi, %esi
; CHECK-BMI-NEXT: andl $1431655765, %esi # imm = 0x55555555
; CHECK-BMI-NEXT: xorl %edi, %esi
; CHECK-BMI-NEXT: movl %esi, %eax
; CHECK-BMI-NEXT: retq
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
%r = xor i32 %n1, %x ; %x instead of %y
ret i32 %r
}
define i32 @in_constmask_commutativity_1_1(i32 %x, i32 %y) {
; CHECK-NOBMI-LABEL: in_constmask_commutativity_1_1:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorl %edi, %esi
; CHECK-NOBMI-NEXT: andl $1431655765, %esi # imm = 0x55555555
; CHECK-NOBMI-NEXT: xorl %edi, %esi
; CHECK-NOBMI-NEXT: movl %esi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in_constmask_commutativity_1_1:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorl %edi, %esi
; CHECK-BMI-NEXT: andl $1431655765, %esi # imm = 0x55555555
; CHECK-BMI-NEXT: xorl %edi, %esi
; CHECK-BMI-NEXT: movl %esi, %eax
; CHECK-BMI-NEXT: retq
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
%r = xor i32 %x, %n1 ; swapped, %x instead of %y
ret i32 %r
}
; ============================================================================ ;
; Y is an 'and' too.
; ============================================================================ ;
define i32 @in_complex_y0_constmask(i32 %x, i32 %y_hi, i32 %y_low) {
; CHECK-NOBMI-LABEL: in_complex_y0_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: andl %edx, %esi
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: movl %edi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in_complex_y0_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: andl %edx, %esi
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: movl %edi, %eax
; CHECK-BMI-NEXT: retq
%y = and i32 %y_hi, %y_low
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
%r = xor i32 %n1, %y
ret i32 %r
}
define i32 @in_complex_y1_constmask(i32 %x, i32 %y_hi, i32 %y_low) {
; CHECK-NOBMI-LABEL: in_complex_y1_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: andl %edx, %esi
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: movl %edi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in_complex_y1_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: andl %edx, %esi
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: movl %edi, %eax
; CHECK-BMI-NEXT: retq
%y = and i32 %y_hi, %y_low
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
%r = xor i32 %y, %n1
ret i32 %r
}
; ============================================================================ ;
; Negative tests. Should not be folded.
; ============================================================================ ;
; Multi-use tests.
declare void @use32(i32) nounwind
define i32 @in_multiuse_A_constmask(i32 %x, i32 %y, i32 %z) nounwind {
; CHECK-NOBMI-LABEL: in_multiuse_A_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: pushq %rbp
; CHECK-NOBMI-NEXT: pushq %rbx
; CHECK-NOBMI-NEXT: pushq %rax
; CHECK-NOBMI-NEXT: movl %esi, %ebx
; CHECK-NOBMI-NEXT: movl %edi, %ebp
; CHECK-NOBMI-NEXT: xorl %esi, %ebp
; CHECK-NOBMI-NEXT: andl $1431655765, %ebp # imm = 0x55555555
; CHECK-NOBMI-NEXT: movl %ebp, %edi
; CHECK-NOBMI-NEXT: callq use32
; CHECK-NOBMI-NEXT: xorl %ebx, %ebp
; CHECK-NOBMI-NEXT: movl %ebp, %eax
; CHECK-NOBMI-NEXT: addq $8, %rsp
; CHECK-NOBMI-NEXT: popq %rbx
; CHECK-NOBMI-NEXT: popq %rbp
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in_multiuse_A_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: pushq %rbp
; CHECK-BMI-NEXT: pushq %rbx
; CHECK-BMI-NEXT: pushq %rax
; CHECK-BMI-NEXT: movl %esi, %ebx
; CHECK-BMI-NEXT: movl %edi, %ebp
; CHECK-BMI-NEXT: xorl %esi, %ebp
; CHECK-BMI-NEXT: andl $1431655765, %ebp # imm = 0x55555555
; CHECK-BMI-NEXT: movl %ebp, %edi
; CHECK-BMI-NEXT: callq use32
; CHECK-BMI-NEXT: xorl %ebx, %ebp
; CHECK-BMI-NEXT: movl %ebp, %eax
; CHECK-BMI-NEXT: addq $8, %rsp
; CHECK-BMI-NEXT: popq %rbx
; CHECK-BMI-NEXT: popq %rbp
; CHECK-BMI-NEXT: retq
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
call void @use32(i32 %n1)
%r = xor i32 %n1, %y
ret i32 %r
}
define i32 @in_multiuse_B_constmask(i32 %x, i32 %y, i32 %z) nounwind {
; CHECK-NOBMI-LABEL: in_multiuse_B_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: pushq %rbp
; CHECK-NOBMI-NEXT: pushq %rbx
; CHECK-NOBMI-NEXT: pushq %rax
; CHECK-NOBMI-NEXT: movl %esi, %ebx
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: movl %edi, %ebp
; CHECK-NOBMI-NEXT: andl $1431655765, %ebp # imm = 0x55555555
; CHECK-NOBMI-NEXT: callq use32
; CHECK-NOBMI-NEXT: xorl %ebx, %ebp
; CHECK-NOBMI-NEXT: movl %ebp, %eax
; CHECK-NOBMI-NEXT: addq $8, %rsp
; CHECK-NOBMI-NEXT: popq %rbx
; CHECK-NOBMI-NEXT: popq %rbp
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: in_multiuse_B_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: pushq %rbp
; CHECK-BMI-NEXT: pushq %rbx
; CHECK-BMI-NEXT: pushq %rax
; CHECK-BMI-NEXT: movl %esi, %ebx
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: movl %edi, %ebp
; CHECK-BMI-NEXT: andl $1431655765, %ebp # imm = 0x55555555
; CHECK-BMI-NEXT: callq use32
; CHECK-BMI-NEXT: xorl %ebx, %ebp
; CHECK-BMI-NEXT: movl %ebp, %eax
; CHECK-BMI-NEXT: addq $8, %rsp
; CHECK-BMI-NEXT: popq %rbx
; CHECK-BMI-NEXT: popq %rbp
; CHECK-BMI-NEXT: retq
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
call void @use32(i32 %n0)
%r = xor i32 %n1, %y
ret i32 %r
}
; Various bad variants
define i32 @n0_badconstmask(i32 %x, i32 %y) {
; CHECK-NOBMI-LABEL: n0_badconstmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-NOBMI-NEXT: andl $-1431655765, %esi # imm = 0xAAAAAAAB
; CHECK-NOBMI-NEXT: orl %edi, %esi
; CHECK-NOBMI-NEXT: movl %esi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: n0_badconstmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-BMI-NEXT: andl $-1431655765, %esi # imm = 0xAAAAAAAB
; CHECK-BMI-NEXT: orl %edi, %esi
; CHECK-BMI-NEXT: movl %esi, %eax
; CHECK-BMI-NEXT: retq
%mx = and i32 %x, 1431655765
%my = and i32 %y, -1431655765 ; instead of -1431655766
%r = or i32 %mx, %my
ret i32 %r
}
define i32 @n1_thirdvar_constmask(i32 %x, i32 %y, i32 %z) {
; CHECK-NOBMI-LABEL: n1_thirdvar_constmask:
; CHECK-NOBMI: # %bb.0:
; CHECK-NOBMI-NEXT: xorl %esi, %edi
; CHECK-NOBMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-NOBMI-NEXT: xorl %edx, %edi
; CHECK-NOBMI-NEXT: movl %edi, %eax
; CHECK-NOBMI-NEXT: retq
;
; CHECK-BMI-LABEL: n1_thirdvar_constmask:
; CHECK-BMI: # %bb.0:
; CHECK-BMI-NEXT: xorl %esi, %edi
; CHECK-BMI-NEXT: andl $1431655765, %edi # imm = 0x55555555
; CHECK-BMI-NEXT: xorl %edx, %edi
; CHECK-BMI-NEXT: movl %edi, %eax
; CHECK-BMI-NEXT: retq
%n0 = xor i32 %x, %y
%n1 = and i32 %n0, 1431655765
%r = xor i32 %n1, %z ; instead of %y
ret i32 %r
}