mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 20:29:48 +00:00
252134602f
These are named following the IEEE-754 names for these functions, rather than the libm fmin / fmax to avoid possible ambiguities. Some languages may implement something resembling fmin / fmax which return NaN if either operand is to propagate errors. These implement the IEEE-754 semantics of returning the other operand if either is a NaN representing missing data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220341 91177308-0d34-0410-b5e6-96231b3b80d8
223 lines
7.4 KiB
LLVM
223 lines
7.4 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
|
|
|
|
declare float @llvm.maxnum.f32(float, float) #0
|
|
declare float @llvm.maxnum.v2f32(<2 x float>, <2 x float>) #0
|
|
declare <4 x float> @llvm.maxnum.v4f32(<4 x float>, <4 x float>) #0
|
|
|
|
declare double @llvm.maxnum.f64(double, double) #0
|
|
declare <2 x double> @llvm.maxnum.v2f64(<2 x double>, <2 x double>) #0
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32
|
|
; CHECK-NEXT: ret float 2.000000e+00
|
|
define float @constant_fold_maxnum_f32() #0 {
|
|
%x = call float @llvm.maxnum.f32(float 1.0, float 2.0) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_inv
|
|
; CHECK-NEXT: ret float 2.000000e+00
|
|
define float @constant_fold_maxnum_f32_inv() #0 {
|
|
%x = call float @llvm.maxnum.f32(float 2.0, float 1.0) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_nan0
|
|
; CHECK-NEXT: ret float 2.000000e+00
|
|
define float @constant_fold_maxnum_f32_nan0() #0 {
|
|
%x = call float @llvm.maxnum.f32(float 0x7FF8000000000000, float 2.0) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_nan1
|
|
; CHECK-NEXT: ret float 2.000000e+00
|
|
define float @constant_fold_maxnum_f32_nan1() #0 {
|
|
%x = call float @llvm.maxnum.f32(float 2.0, float 0x7FF8000000000000) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_nan_nan
|
|
; CHECK-NEXT: ret float 0x7FF8000000000000
|
|
define float @constant_fold_maxnum_f32_nan_nan() #0 {
|
|
%x = call float @llvm.maxnum.f32(float 0x7FF8000000000000, float 0x7FF8000000000000) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_p0_p0
|
|
; CHECK-NEXT: ret float 0.000000e+00
|
|
define float @constant_fold_maxnum_f32_p0_p0() #0 {
|
|
%x = call float @llvm.maxnum.f32(float 0.0, float 0.0) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_p0_n0
|
|
; CHECK-NEXT: ret float 0.000000e+00
|
|
define float @constant_fold_maxnum_f32_p0_n0() #0 {
|
|
%x = call float @llvm.maxnum.f32(float 0.0, float -0.0) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_n0_p0
|
|
; CHECK-NEXT: ret float -0.000000e+00
|
|
define float @constant_fold_maxnum_f32_n0_p0() #0 {
|
|
%x = call float @llvm.maxnum.f32(float -0.0, float 0.0) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f32_n0_n0
|
|
; CHECK-NEXT: ret float -0.000000e+00
|
|
define float @constant_fold_maxnum_f32_n0_n0() #0 {
|
|
%x = call float @llvm.maxnum.f32(float -0.0, float -0.0) #0
|
|
ret float %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_v4f32
|
|
; CHECK-NEXT: ret <4 x float> <float 2.000000e+00, float 8.000000e+00, float 1.000000e+01, float 9.000000e+00>
|
|
define <4 x float> @constant_fold_maxnum_v4f32() #0 {
|
|
%x = call <4 x float> @llvm.maxnum.v4f32(<4 x float> <float 1.0, float 8.0, float 3.0, float 9.0>, <4 x float> <float 2.0, float 2.0, float 10.0, float 5.0>)
|
|
ret <4 x float> %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f64
|
|
; CHECK-NEXT: ret double 2.000000e+00
|
|
define double @constant_fold_maxnum_f64() #0 {
|
|
%x = call double @llvm.maxnum.f64(double 1.0, double 2.0) #0
|
|
ret double %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f64_nan0
|
|
; CHECK-NEXT: ret double 2.000000e+00
|
|
define double @constant_fold_maxnum_f64_nan0() #0 {
|
|
%x = call double @llvm.maxnum.f64(double 0x7FF8000000000000, double 2.0) #0
|
|
ret double %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f64_nan1
|
|
; CHECK-NEXT: ret double 2.000000e+00
|
|
define double @constant_fold_maxnum_f64_nan1() #0 {
|
|
%x = call double @llvm.maxnum.f64(double 2.0, double 0x7FF8000000000000) #0
|
|
ret double %x
|
|
}
|
|
|
|
; CHECK-LABEL: @constant_fold_maxnum_f64_nan_nan
|
|
; CHECK-NEXT: ret double 0x7FF8000000000000
|
|
define double @constant_fold_maxnum_f64_nan_nan() #0 {
|
|
%x = call double @llvm.maxnum.f64(double 0x7FF8000000000000, double 0x7FF8000000000000) #0
|
|
ret double %x
|
|
}
|
|
|
|
; CHECK-LABEL: @canonicalize_constant_maxnum_f32
|
|
; CHECK: call float @llvm.maxnum.f32(float %x, float 1.000000e+00)
|
|
define float @canonicalize_constant_maxnum_f32(float %x) #0 {
|
|
%y = call float @llvm.maxnum.f32(float 1.0, float %x) #0
|
|
ret float %y
|
|
}
|
|
|
|
; CHECK-LABEL: @noop_maxnum_f32
|
|
; CHECK-NEXT: ret float %x
|
|
define float @noop_maxnum_f32(float %x) #0 {
|
|
%y = call float @llvm.maxnum.f32(float %x, float %x) #0
|
|
ret float %y
|
|
}
|
|
|
|
; CHECK-LABEL: @maxnum_f32_nan_val
|
|
; CHECK-NEXT: ret float %x
|
|
define float @maxnum_f32_nan_val(float %x) #0 {
|
|
%y = call float @llvm.maxnum.f32(float 0x7FF8000000000000, float %x) #0
|
|
ret float %y
|
|
}
|
|
|
|
; CHECK-LABEL: @maxnum_f32_val_nan
|
|
; CHECK-NEXT: ret float %x
|
|
define float @maxnum_f32_val_nan(float %x) #0 {
|
|
%y = call float @llvm.maxnum.f32(float %x, float 0x7FF8000000000000) #0
|
|
ret float %y
|
|
}
|
|
|
|
; CHECK-LABEL: @fold_maxnum_f32_undef_undef
|
|
; CHECK-NEXT: ret float undef
|
|
define float @fold_maxnum_f32_undef_undef(float %x) nounwind {
|
|
%val = call float @llvm.maxnum.f32(float undef, float undef) #0
|
|
ret float %val
|
|
}
|
|
|
|
; CHECK-LABEL: @fold_maxnum_f32_val_undef
|
|
; CHECK-NEXT: ret float %x
|
|
define float @fold_maxnum_f32_val_undef(float %x) nounwind {
|
|
%val = call float @llvm.maxnum.f32(float %x, float undef) #0
|
|
ret float %val
|
|
}
|
|
|
|
; CHECK-LABEL: @fold_maxnum_f32_undef_val
|
|
; CHECK-NEXT: ret float %x
|
|
define float @fold_maxnum_f32_undef_val(float %x) nounwind {
|
|
%val = call float @llvm.maxnum.f32(float undef, float %x) #0
|
|
ret float %val
|
|
}
|
|
|
|
; CHECK-LABEL: @maxnum_x_maxnum_x_y
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
|
|
; CHECK-NEXT: ret float
|
|
define float @maxnum_x_maxnum_x_y(float %x, float %y) #0 {
|
|
%a = call float @llvm.maxnum.f32(float %x, float %y) #0
|
|
%b = call float @llvm.maxnum.f32(float %x, float %a) #0
|
|
ret float %b
|
|
}
|
|
|
|
; CHECK-LABEL: @maxnum_y_maxnum_x_y
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
|
|
; CHECK-NEXT: ret float
|
|
define float @maxnum_y_maxnum_x_y(float %x, float %y) #0 {
|
|
%a = call float @llvm.maxnum.f32(float %x, float %y) #0
|
|
%b = call float @llvm.maxnum.f32(float %y, float %a) #0
|
|
ret float %b
|
|
}
|
|
|
|
; CHECK-LABEL: @maxnum_z_maxnum_x_y
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %z, float %a)
|
|
; CHECK-NEXT: ret float
|
|
define float @maxnum_z_maxnum_x_y(float %x, float %y, float %z) #0 {
|
|
%a = call float @llvm.maxnum.f32(float %x, float %y) #0
|
|
%b = call float @llvm.maxnum.f32(float %z, float %a) #0
|
|
ret float %b
|
|
}
|
|
|
|
; CHECK-LABEL: @maxnum_maxnum_x_y_z
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %a, float %z)
|
|
; CHECK-NEXT: ret float
|
|
define float @maxnum_maxnum_x_y_z(float %x, float %y, float %z) #0 {
|
|
%a = call float @llvm.maxnum.f32(float %x, float %y) #0
|
|
%b = call float @llvm.maxnum.f32(float %a, float %z) #0
|
|
ret float %b
|
|
}
|
|
|
|
; CHECK-LABEL: @maxnum4
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %z, float %w)
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %a, float %b)
|
|
; CHECK-NEXT: ret float
|
|
define float @maxnum4(float %x, float %y, float %z, float %w) #0 {
|
|
%a = call float @llvm.maxnum.f32(float %x, float %y) #0
|
|
%b = call float @llvm.maxnum.f32(float %z, float %w) #0
|
|
%c = call float @llvm.maxnum.f32(float %a, float %b) #0
|
|
ret float %c
|
|
}
|
|
|
|
; CHECK-LABEL: @fold_maxnum_f32_inf_val
|
|
; CHECK-NEXT: ret float 0x7FF0000000000000
|
|
define float @fold_maxnum_f32_inf_val(float %x) nounwind {
|
|
%val = call float @llvm.maxnum.f32(float 0x7FF0000000000000, float %x) #0
|
|
ret float %val
|
|
}
|
|
|
|
; CHECK-LABEL: @fold_maxnum_f32_neginf_val
|
|
; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float 0xFFF0000000000000)
|
|
; CHECK-NEXT: ret float
|
|
define float @fold_maxnum_f32_neginf_val(float %x) nounwind {
|
|
%val = call float @llvm.maxnum.f32(float 0xFFF0000000000000, float %x) #0
|
|
ret float %val
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone }
|