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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instcombine %s | FileCheck %s
@var = external global i32, align 4
; fcmp olt fabs(x), smallest_normalized_number -> fcmp oeq x, 0.0
; https://alive2.llvm.org/ce/z/fib8cf
define void @denormal_input_preserve_sign_fcmp_olt_smallest_normalized(float %f32, double %f64, half %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_olt_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp oeq double [[F64:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp oeq half [[F16:%.*]], 0xH0000
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: [[CMPF32_FLAGS:%.*]] = fcmp oeq float [[F32]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF32_FLAGS]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp olt half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
%f32.fabs.flags = call nsz nnan float @llvm.fabs.f32(float %f32)
%cmpf32.flags = fcmp olt float %f32.fabs.flags, 0x3810000000000000
store volatile i1 %cmpf32.flags, ptr @var
ret void
}
; fcmp uge fabs(x), smallest_normalized_number -> fcmp une x, 0.0
; https://alive2.llvm.org/ce/z/xmqBXx
define void @denormal_input_preserve_sign_fcmp_uge_smallest_normalized(float %f32, double %f64, half %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_uge_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp une float [[F32:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp une double [[F64:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp une half [[F16:%.*]], 0xH0000
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp uge float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp uge double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp uge half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
; fcmp oge fabs(x), smallest_normalized_number -> fcmp one x, 0.0
; https://alive2.llvm.org/ce/z/ZucNzF
define void @denormal_input_preserve_sign_fcmp_oge_smallest_normalized(float %f32, double %f64, half %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_oge_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp one float [[F32:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp one double [[F64:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp one half [[F16:%.*]], 0xH0000
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp oge float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp oge double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp oge half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
; fcmp ult fabs(x), smallest_normalized_number -> fcmp ueq x, 0.0
; https://alive2.llvm.org/ce/z/csAhZ2
define void @denormal_input_preserve_sign_fcmp_ult_smallest_normalized(float %f32, double %f64, half %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_ult_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp ueq float [[F32:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp ueq double [[F64:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp ueq half [[F16:%.*]], 0xH0000
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp ult float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp ult double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp ult half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
define void @denormal_input_preserve_sign_vector_fcmp_olt_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_olt_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq <2 x float> [[F32:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp oeq <2 x double> [[F64:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp oeq <2 x half> [[F16:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
%cmpf32 = fcmp olt <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
store volatile <2 x i1> %cmpf32, ptr @var
%f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
%cmpf64 = fcmp olt <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
store volatile <2 x i1> %cmpf64, ptr @var
%f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
%cmpf16 = fcmp olt <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
store volatile <2 x i1> %cmpf16, ptr @var
ret void
}
define void @denormal_input_preserve_sign_vector_fcmp_uge_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_uge_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp une <2 x float> [[F32:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp une <2 x double> [[F64:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp une <2 x half> [[F16:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
%cmpf32 = fcmp uge <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
store volatile <2 x i1> %cmpf32, ptr @var
%f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
%cmpf64 = fcmp uge <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
store volatile <2 x i1> %cmpf64, ptr @var
%f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
%cmpf16 = fcmp uge <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
store volatile <2 x i1> %cmpf16, ptr @var
ret void
}
define void @denormal_input_preserve_sign_vector_fcmp_oge_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_oge_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp one <2 x float> [[F32:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp one <2 x double> [[F64:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp one <2 x half> [[F16:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
%cmpf32 = fcmp oge <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
store volatile <2 x i1> %cmpf32, ptr @var
%f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
%cmpf64 = fcmp oge <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
store volatile <2 x i1> %cmpf64, ptr @var
%f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
%cmpf16 = fcmp oge <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
store volatile <2 x i1> %cmpf16, ptr @var
ret void
}
define void @denormal_input_preserve_sign_vector_fcmp_ult_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_ult_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp ueq <2 x float> [[F32:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp ueq <2 x double> [[F64:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp ueq <2 x half> [[F16:%.*]], zeroinitializer
; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
%cmpf32 = fcmp ult <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
store volatile <2 x i1> %cmpf32, ptr @var
%f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
%cmpf64 = fcmp ult <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
store volatile <2 x i1> %cmpf64, ptr @var
%f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
%cmpf16 = fcmp ult <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
store volatile <2 x i1> %cmpf16, ptr @var
ret void
}
; fcmp olt fabs(x), smallest_normalized_number -> fcmp oeq x, 0.0
; https://alive2.llvm.org/ce/z/mpduXS
define void @denormal_input_positive_zero_fcmp_olt_smallest_normalized(float %f32, double %f64, half %f16) #1 {
; CHECK-LABEL: @denormal_input_positive_zero_fcmp_olt_smallest_normalized(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp oeq double [[F64:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp oeq half [[F16:%.*]], 0xH0000
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp olt half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
; Should not fold with IEEE inputs.
define void @denormal_input_ieee(float %f32, double %f64, half %f16) #2 {
; CHECK-LABEL: @denormal_input_ieee(
; CHECK-NEXT: [[F32_FABS:%.*]] = call float @llvm.fabs.f32(float [[F32:%.*]])
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp olt float [[F32_FABS]], 0x3810000000000000
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp olt double [[F64_FABS]], 0x10000000000000
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp olt half [[F16_FABS]], 0xH0400
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp olt half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
; Only f32 case should fold.
define void @denormal_input_preserve_sign_f32_only(float %f32, double %f64, half %f16) #3 {
; CHECK-LABEL: @denormal_input_preserve_sign_f32_only(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp olt double [[F64_FABS]], 0x10000000000000
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp olt half [[F16_FABS]], 0xH0400
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp olt half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
define void @wrong_fcmp_type_ole(float %f32, double %f64, half %f16) #0 {
; CHECK-LABEL: @wrong_fcmp_type_ole(
; CHECK-NEXT: [[F32_FABS:%.*]] = call float @llvm.fabs.f32(float [[F32:%.*]])
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp ole float [[F32_FABS]], 0x3810000000000000
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp ole double [[F64_FABS]], 0x10000000000000
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp ole half [[F16_FABS]], 0xH0400
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%f32.fabs = call float @llvm.fabs.f32(float %f32)
%cmpf32 = fcmp ole float %f32.fabs, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%f64.fabs = call double @llvm.fabs.f64(double %f64)
%cmpf64 = fcmp ole double %f64.fabs, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%f16.fabs = call half @llvm.fabs.f16(half %f16)
%cmpf16 = fcmp ole half %f16.fabs, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
define void @missing_fabs(float %f32, double %f64, half %f16) #0 {
; CHECK-LABEL: @missing_fabs(
; CHECK-NEXT: [[CMPF32:%.*]] = fcmp olt float [[F32:%.*]], 0x3810000000000000
; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 4
; CHECK-NEXT: [[CMPF64:%.*]] = fcmp olt double [[F64:%.*]], 0x10000000000000
; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 4
; CHECK-NEXT: [[CMPF16:%.*]] = fcmp olt half [[F16:%.*]], 0xH0400
; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 4
; CHECK-NEXT: ret void
;
%cmpf32 = fcmp olt float %f32, 0x3810000000000000
store volatile i1 %cmpf32, ptr @var
%cmpf64 = fcmp olt double %f64, 0x10000000000000
store volatile i1 %cmpf64, ptr @var
%cmpf16 = fcmp olt half %f16, 0xH0400
store volatile i1 %cmpf16, ptr @var
ret void
}
declare float @llvm.fabs.f32(float)
declare <2 x float> @llvm.fabs.v2f32(<2 x float>)
declare half @llvm.fabs.f16(half)
declare <2 x half> @llvm.fabs.v2f16(<2 x half>)
declare double @llvm.fabs.f64(double)
declare <2 x double> @llvm.fabs.v2f64(<2 x double>)
attributes #0 = { "denormal-fp-math"="ieee,preserve-sign" }
attributes #1 = { "denormal-fp-math"="ieee,positive-zero" }
attributes #2 = { "denormal-fp-math"="ieee,iee" }
attributes #3 = { "denormal-fp-math-f32"="ieee,preserve-sign" }
|
