96e09fef3c
After applying FMIN/FMAX, if any of operands is NaN, the second operand will be the result. So all we need is to check whether first operand is NaN and return it or result of FMIN/FMAX. So we avoid usage of constant NaN in the lowering. Additionally we can avoid handling NaN after FMIN/FMAX if we are sure that first operand is not NaN. Reviewed By: e-kud Differential Revision: https://reviews.llvm.org/D149729
138 lines
5.0 KiB
LLVM
138 lines
5.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-- -mattr=+sse2 | FileCheck %s
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define float @ext_fadd_v4f32(<4 x float> %x) {
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; CHECK-LABEL: ext_fadd_v4f32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movhlps {{.*#+}} xmm0 = xmm0[1,1]
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; CHECK-NEXT: addss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%bo = fadd <4 x float> %x, <float 1.0, float 2.0, float 3.0, float 42.0>
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%ext = extractelement <4 x float> %bo, i32 2
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ret float %ext
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}
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define float @ext_fsub_v4f32(<4 x float> %x) {
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; CHECK-LABEL: ext_fsub_v4f32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[1,1,1,1]
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; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; CHECK-NEXT: subss %xmm0, %xmm1
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; CHECK-NEXT: movaps %xmm1, %xmm0
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; CHECK-NEXT: retq
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%bo = fsub <4 x float> <float 1.0, float 2.0, float 3.0, float 42.0>, %x
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%ext = extractelement <4 x float> %bo, i32 1
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ret float %ext
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}
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define float @ext_fmul_v4f32(<4 x float> %x) {
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; CHECK-LABEL: ext_fmul_v4f32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[3,3,3,3]
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; CHECK-NEXT: mulss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%bo = fmul <4 x float> %x, <float 1.0, float 2.0, float 3.0, float 42.0>
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%ext = extractelement <4 x float> %bo, i32 3
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ret float %ext
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}
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; X / 1.0 --> X
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define float @ext_fdiv_v4f32(<4 x float> %x) {
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; CHECK-LABEL: ext_fdiv_v4f32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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%bo = fdiv <4 x float> %x, <float 1.0, float 2.0, float 3.0, float 42.0>
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%ext = extractelement <4 x float> %bo, i32 0
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ret float %ext
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}
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define float @ext_fdiv_v4f32_constant_op0(<4 x float> %x) {
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; CHECK-LABEL: ext_fdiv_v4f32_constant_op0:
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; CHECK: # %bb.0:
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[1,1,1,1]
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; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; CHECK-NEXT: divss %xmm0, %xmm1
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; CHECK-NEXT: movaps %xmm1, %xmm0
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; CHECK-NEXT: retq
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%bo = fdiv <4 x float> <float 1.0, float 2.0, float 3.0, float 42.0>, %x
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%ext = extractelement <4 x float> %bo, i32 1
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ret float %ext
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}
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define float @ext_frem_v4f32(<4 x float> %x) {
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; CHECK-LABEL: ext_frem_v4f32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movhlps {{.*#+}} xmm0 = xmm0[1,1]
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; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; CHECK-NEXT: jmp fmodf@PLT # TAILCALL
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%bo = frem <4 x float> %x, <float 1.0, float 2.0, float 3.0, float 42.0>
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%ext = extractelement <4 x float> %bo, i32 2
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ret float %ext
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}
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define float @ext_frem_v4f32_constant_op0(<4 x float> %x) {
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; CHECK-LABEL: ext_frem_v4f32_constant_op0:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movaps %xmm0, %xmm1
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; CHECK-NEXT: shufps {{.*#+}} xmm1 = xmm1[1,1],xmm0[1,1]
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; CHECK-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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; CHECK-NEXT: jmp fmodf@PLT # TAILCALL
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%bo = frem <4 x float> <float 1.0, float 2.0, float 3.0, float 42.0>, %x
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%ext = extractelement <4 x float> %bo, i32 1
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ret float %ext
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}
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define float @ext_maxnum_v4f32(<4 x float> %x) nounwind {
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; CHECK-LABEL: ext_maxnum_v4f32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movhlps {{.*#+}} xmm0 = xmm0[1,1]
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; CHECK-NEXT: maxss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%v = call <4 x float> @llvm.maxnum.v4f32(<4 x float> %x, <4 x float> <float 0.0, float 1.0, float 2.0, float 3.0>)
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%r = extractelement <4 x float> %v, i32 2
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ret float %r
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}
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define double @ext_minnum_v2f64(<2 x double> %x) nounwind {
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; CHECK-LABEL: ext_minnum_v2f64:
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; CHECK: # %bb.0:
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; CHECK-NEXT: unpckhpd {{.*#+}} xmm0 = xmm0[1,1]
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; CHECK-NEXT: minsd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%v = call <2 x double> @llvm.minnum.v2f64(<2 x double> <double 0.0, double 1.0>, <2 x double> %x)
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%r = extractelement <2 x double> %v, i32 1
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ret double %r
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}
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define double @ext_maximum_v4f64(<2 x double> %x) nounwind {
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; CHECK-LABEL: ext_maximum_v4f64:
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; CHECK: # %bb.0:
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; CHECK-NEXT: unpckhpd {{.*#+}} xmm0 = xmm0[1,1]
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; CHECK-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: retq
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%v = call <2 x double> @llvm.maximum.v2f64(<2 x double> %x, <2 x double> <double 42.0, double 43.0>)
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%r = extractelement <2 x double> %v, i32 1
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ret double %r
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}
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define float @ext_minimum_v4f32(<4 x float> %x) nounwind {
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; CHECK-LABEL: ext_minimum_v4f32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[1,1,1,1]
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; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; CHECK-NEXT: minss %xmm0, %xmm1
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; CHECK-NEXT: movaps %xmm1, %xmm0
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; CHECK-NEXT: retq
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%v = call <4 x float> @llvm.minimum.v4f32(<4 x float> %x, <4 x float> <float 0.0, float 1.0, float 2.0, float 42.0>)
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%r = extractelement <4 x float> %v, i32 1
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ret float %r
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}
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declare <4 x float> @llvm.maxnum.v4f32(<4 x float>, <4 x float>)
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declare <2 x double> @llvm.minnum.v2f64(<2 x double>, <2 x double>)
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declare <2 x double> @llvm.maximum.v2f64(<2 x double>, <2 x double>)
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declare <4 x float> @llvm.minimum.v4f32(<4 x float>, <4 x float>)
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