Simon Pilgrim a2a0089ac3
[X86] movsd/movss/movd/movq - add support for constant comments (#78601)
If we're loading a constant value, print the constant (and the zero upper elements) instead of just the shuffle mask.

This did require me to move the shuffle mask handling into addConstantComments as we can't handle this in the MC layer.
2024-01-19 14:21:26 +00:00

428 lines
12 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=sse2 < %s | FileCheck %s
; PR22428: https://llvm.org/bugs/show_bug.cgi?id=22428
; f1, f2, f3, and f4 should use an integer logic instruction.
; f5, f6, f9, and f10 should use an FP (SSE) logic instruction.
;
; f7 and f8 are less clear.
;
; For f7 and f8, the SSE instructions don't take immediate operands, so if we
; use one of those, we either have to load a constant from memory or move the
; scalar immediate value from an integer register over to an SSE register.
; Optimizing for size may affect that decision. Also, note that there are no
; scalar versions of the FP logic ops, so if we want to fold a load into a
; logic op, we have to load or splat a 16-byte vector constant.
; 1 FP operand, 1 int operand, int result
define i32 @f1(float %x, i32 %y) {
; CHECK-LABEL: f1:
; CHECK: # %bb.0:
; CHECK-NEXT: movd %xmm0, %eax
; CHECK-NEXT: andl %edi, %eax
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 %bc1, %y
ret i32 %and
}
; Swap operands of the logic op.
define i32 @f2(float %x, i32 %y) {
; CHECK-LABEL: f2:
; CHECK: # %bb.0:
; CHECK-NEXT: movd %xmm0, %eax
; CHECK-NEXT: andl %edi, %eax
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 %y, %bc1
ret i32 %and
}
; 1 FP operand, 1 constant operand, int result
define i32 @f3(float %x) {
; CHECK-LABEL: f3:
; CHECK: # %bb.0:
; CHECK-NEXT: movd %xmm0, %eax
; CHECK-NEXT: andl $1, %eax
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 %bc1, 1
ret i32 %and
}
; Swap operands of the logic op.
define i32 @f4(float %x) {
; CHECK-LABEL: f4:
; CHECK: # %bb.0:
; CHECK-NEXT: movd %xmm0, %eax
; CHECK-NEXT: andl $2, %eax
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 2, %bc1
ret i32 %and
}
; 1 FP operand, 1 integer operand, FP result
define float @f5(float %x, i32 %y) {
; CHECK-LABEL: f5:
; CHECK: # %bb.0:
; CHECK-NEXT: movd %edi, %xmm1
; CHECK-NEXT: pand %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 %bc1, %y
%bc2 = bitcast i32 %and to float
ret float %bc2
}
; Swap operands of the logic op.
define float @f6(float %x, i32 %y) {
; CHECK-LABEL: f6:
; CHECK: # %bb.0:
; CHECK-NEXT: movd %edi, %xmm1
; CHECK-NEXT: pand %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 %y, %bc1
%bc2 = bitcast i32 %and to float
ret float %bc2
}
; 1 FP operand, 1 constant operand, FP result
define float @f7(float %x) {
; CHECK-LABEL: f7:
; CHECK: # %bb.0:
; CHECK-NEXT: movss {{.*#+}} xmm1 = [4.20389539E-45,0.0E+0,0.0E+0,0.0E+0]
; CHECK-NEXT: andps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 %bc1, 3
%bc2 = bitcast i32 %and to float
ret float %bc2
}
; Swap operands of the logic op.
define float @f8(float %x) {
; CHECK-LABEL: f8:
; CHECK: # %bb.0:
; CHECK-NEXT: movss {{.*#+}} xmm1 = [5.60519386E-45,0.0E+0,0.0E+0,0.0E+0]
; CHECK-NEXT: andps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 4, %bc1
%bc2 = bitcast i32 %and to float
ret float %bc2
}
; 2 FP operands, int result
define i32 @f9(float %x, float %y) {
; CHECK-LABEL: f9:
; CHECK: # %bb.0:
; CHECK-NEXT: pand %xmm1, %xmm0
; CHECK-NEXT: movd %xmm0, %eax
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%bc2 = bitcast float %y to i32
%and = and i32 %bc1, %bc2
ret i32 %and
}
; 2 FP operands, FP result
define float @f10(float %x, float %y) {
; CHECK-LABEL: f10:
; CHECK: # %bb.0:
; CHECK-NEXT: andps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%bc2 = bitcast float %y to i32
%and = and i32 %bc1, %bc2
%bc3 = bitcast i32 %and to float
ret float %bc3
}
define float @or(float %x, float %y) {
; CHECK-LABEL: or:
; CHECK: # %bb.0:
; CHECK-NEXT: orps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%bc2 = bitcast float %y to i32
%and = or i32 %bc1, %bc2
%bc3 = bitcast i32 %and to float
ret float %bc3
}
define float @xor(float %x, float %y) {
; CHECK-LABEL: xor:
; CHECK: # %bb.0:
; CHECK-NEXT: xorps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%bc2 = bitcast float %y to i32
%and = xor i32 %bc1, %bc2
%bc3 = bitcast i32 %and to float
ret float %bc3
}
define float @f7_or(float %x) {
; CHECK-LABEL: f7_or:
; CHECK: # %bb.0:
; CHECK-NEXT: movss {{.*#+}} xmm1 = [4.20389539E-45,0.0E+0,0.0E+0,0.0E+0]
; CHECK-NEXT: orps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = or i32 %bc1, 3
%bc2 = bitcast i32 %and to float
ret float %bc2
}
define float @f7_xor(float %x) {
; CHECK-LABEL: f7_xor:
; CHECK: # %bb.0:
; CHECK-NEXT: movss {{.*#+}} xmm1 = [4.20389539E-45,0.0E+0,0.0E+0,0.0E+0]
; CHECK-NEXT: xorps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = xor i32 %bc1, 3
%bc2 = bitcast i32 %and to float
ret float %bc2
}
; Make sure that doubles work too.
define double @doubles(double %x, double %y) {
; CHECK-LABEL: doubles:
; CHECK: # %bb.0:
; CHECK-NEXT: andps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast double %x to i64
%bc2 = bitcast double %y to i64
%and = and i64 %bc1, %bc2
%bc3 = bitcast i64 %and to double
ret double %bc3
}
define double @f7_double(double %x) {
; CHECK-LABEL: f7_double:
; CHECK: # %bb.0:
; CHECK-NEXT: movsd {{.*#+}} xmm1 = [1.4821969375237396E-323,0.0E+0]
; CHECK-NEXT: andps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast double %x to i64
%and = and i64 %bc1, 3
%bc2 = bitcast i64 %and to double
ret double %bc2
}
; Grabbing the sign bit is a special case that could be handled
; by movmskps/movmskpd, but if we're not shifting it over, then
; a simple FP logic op is cheaper.
define float @movmsk(float %x) {
; CHECK-LABEL: movmsk:
; CHECK: # %bb.0:
; CHECK-NEXT: movss {{.*#+}} xmm1 = [-0.0E+0,0.0E+0,0.0E+0,0.0E+0]
; CHECK-NEXT: andps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%and = and i32 %bc1, 2147483648
%bc2 = bitcast i32 %and to float
ret float %bc2
}
define double @bitcast_fabs(double %x) {
; CHECK-LABEL: bitcast_fabs:
; CHECK: # %bb.0:
; CHECK-NEXT: andps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast double %x to i64
%and = and i64 %bc1, 9223372036854775807
%bc2 = bitcast i64 %and to double
ret double %bc2
}
define float @bitcast_fneg(float %x) {
; CHECK-LABEL: bitcast_fneg:
; CHECK: # %bb.0:
; CHECK-NEXT: xorps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %x to i32
%xor = xor i32 %bc1, 2147483648
%bc2 = bitcast i32 %xor to float
ret float %bc2
}
define <2 x double> @bitcast_fabs_vec(<2 x double> %x) {
; CHECK-LABEL: bitcast_fabs_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: andps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <2 x double> %x to <2 x i64>
%and = and <2 x i64> %bc1, <i64 9223372036854775807, i64 9223372036854775807>
%bc2 = bitcast <2 x i64> %and to <2 x double>
ret <2 x double> %bc2
}
define <4 x float> @bitcast_fneg_vec(<4 x float> %x) {
; CHECK-LABEL: bitcast_fneg_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: xorps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <4 x float> %x to <4 x i32>
%xor = xor <4 x i32> %bc1, <i32 2147483648, i32 2147483648, i32 2147483648, i32 2147483648>
%bc2 = bitcast <4 x i32> %xor to <4 x float>
ret <4 x float> %bc2
}
define float @fadd_bitcast_fneg(float %x, float %y) {
; CHECK-LABEL: fadd_bitcast_fneg:
; CHECK: # %bb.0:
; CHECK-NEXT: subss %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %y to i32
%xor = xor i32 %bc1, 2147483648
%bc2 = bitcast i32 %xor to float
%fadd = fadd float %x, %bc2
ret float %fadd
}
define float @fsub_bitcast_fneg(float %x, float %y) {
; CHECK-LABEL: fsub_bitcast_fneg:
; CHECK: # %bb.0:
; CHECK-NEXT: addss %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast float %y to i32
%xor = xor i32 %bc1, 2147483648
%bc2 = bitcast i32 %xor to float
%fsub = fsub float %x, %bc2
ret float %fsub
}
define float @nabsf(float %a) {
; CHECK-LABEL: nabsf:
; CHECK: # %bb.0:
; CHECK-NEXT: orps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%conv = bitcast float %a to i32
%and = or i32 %conv, -2147483648
%conv1 = bitcast i32 %and to float
ret float %conv1
}
define double @nabsd(double %a) {
; CHECK-LABEL: nabsd:
; CHECK: # %bb.0:
; CHECK-NEXT: orps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%conv = bitcast double %a to i64
%and = or i64 %conv, -9223372036854775808
%conv1 = bitcast i64 %and to double
ret double %conv1
}
define <4 x float> @nabsv4f32(<4 x float> %a) {
; CHECK-LABEL: nabsv4f32:
; CHECK: # %bb.0:
; CHECK-NEXT: orps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%conv = bitcast <4 x float> %a to <4 x i32>
%and = or <4 x i32> %conv, <i32 -2147483648, i32 -2147483648, i32 -2147483648, i32 -2147483648>
%conv1 = bitcast <4 x i32> %and to <4 x float>
ret <4 x float> %conv1
}
define <2 x double> @nabsv2d64(<2 x double> %a) {
; CHECK-LABEL: nabsv2d64:
; CHECK: # %bb.0:
; CHECK-NEXT: orps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT: retq
%conv = bitcast <2 x double> %a to <2 x i64>
%and = or <2 x i64> %conv, <i64 -9223372036854775808, i64 -9223372036854775808>
%conv1 = bitcast <2 x i64> %and to <2 x double>
ret <2 x double> %conv1
}
define <4 x float> @fadd_bitcast_fneg_vec(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: fadd_bitcast_fneg_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: subps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <4 x float> %y to <4 x i32>
%xor = xor <4 x i32> %bc1, <i32 2147483648, i32 2147483648, i32 2147483648, i32 2147483648>
%bc2 = bitcast <4 x i32> %xor to <4 x float>
%fadd = fadd <4 x float> %x, %bc2
ret <4 x float> %fadd
}
define <4 x float> @fadd_bitcast_fneg_vec_undef_elts(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: fadd_bitcast_fneg_vec_undef_elts:
; CHECK: # %bb.0:
; CHECK-NEXT: subps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <4 x float> %y to <4 x i32>
%xor = xor <4 x i32> %bc1, <i32 2147483648, i32 2147483648, i32 undef, i32 2147483648>
%bc2 = bitcast <4 x i32> %xor to <4 x float>
%fadd = fadd <4 x float> %x, %bc2
ret <4 x float> %fadd
}
define <4 x float> @fsub_bitcast_fneg_vec(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: fsub_bitcast_fneg_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: addps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <4 x float> %y to <4 x i32>
%xor = xor <4 x i32> %bc1, <i32 2147483648, i32 2147483648, i32 2147483648, i32 2147483648>
%bc2 = bitcast <4 x i32> %xor to <4 x float>
%fsub = fsub <4 x float> %x, %bc2
ret <4 x float> %fsub
}
define <4 x float> @fsub_bitcast_fneg_vec_undef_elts(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: fsub_bitcast_fneg_vec_undef_elts:
; CHECK: # %bb.0:
; CHECK-NEXT: addps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <4 x float> %y to <4 x i32>
%xor = xor <4 x i32> %bc1, <i32 undef, i32 2147483648, i32 undef, i32 2147483648>
%bc2 = bitcast <4 x i32> %xor to <4 x float>
%fsub = fsub <4 x float> %x, %bc2
ret <4 x float> %fsub
}
define <4 x float> @fadd_bitcast_fneg_vec_width(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: fadd_bitcast_fneg_vec_width:
; CHECK: # %bb.0:
; CHECK-NEXT: xorps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
; CHECK-NEXT: addps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <4 x float> %y to <2 x i64>
%xor = xor <2 x i64> %bc1, <i64 -9223372034707292160, i64 -9223372034707292160>
%bc2 = bitcast <2 x i64> %xor to <4 x float>
%fadd = fadd <4 x float> %x, %bc2
ret <4 x float> %fadd
}
define <4 x float> @fsub_bitcast_fneg_vec_width(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: fsub_bitcast_fneg_vec_width:
; CHECK: # %bb.0:
; CHECK-NEXT: xorps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
; CHECK-NEXT: subps %xmm1, %xmm0
; CHECK-NEXT: retq
%bc1 = bitcast <4 x float> %y to <2 x i64>
%xor = xor <2 x i64> %bc1, <i64 -9223372034707292160, i64 -9223372034707292160>
%bc2 = bitcast <2 x i64> %xor to <4 x float>
%fsub = fsub <4 x float> %x, %bc2
ret <4 x float> %fsub
}