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llvm-project/llvm/test/CodeGen/AMDGPU/copysign-simplify-demanded-bits.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefix=GFX9 %s
; Test that we use SimplifyDemandedBits on copysign's sign
; operand. These are somewhat simplified extractions from fast pown
; expansions.
define half @test_pown_reduced_fast_f16_known_odd(half %x, i32 %y.arg) #0 {
; GFX9-LABEL: test_pown_reduced_fast_f16_known_odd:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_or_b32_e32 v1, 1, v1
; GFX9-NEXT: v_cvt_f32_i32_e32 v1, v1
; GFX9-NEXT: s_movk_i32 s4, 0x7fff
; GFX9-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX9-NEXT: v_mul_f16_e64 v1, |v0|, v1
; GFX9-NEXT: v_bfi_b32 v0, s4, v1, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y = or i32 %y.arg, 1
%fabs = call half @llvm.fabs.f16(half %x)
%pownI2F = sitofp i32 %y to half
%ylogx = fmul half %fabs, %pownI2F
%cast_x = bitcast half %x to i16
%pow_sign = and i16 %cast_x, -32768
%cast_sign = bitcast i16 %pow_sign to half
%pow_sign1 = call half @llvm.copysign.f16(half %ylogx, half %cast_sign)
ret half %pow_sign1
}
define <2 x half> @test_pown_reduced_fast_v2f16_known_odd(<2 x half> %x, <2 x i32> %y.arg) #0 {
; GFX9-LABEL: test_pown_reduced_fast_v2f16_known_odd:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_or_b32_e32 v1, 1, v1
; GFX9-NEXT: v_or_b32_e32 v2, 1, v2
; GFX9-NEXT: v_cvt_f32_i32_e32 v2, v2
; GFX9-NEXT: v_cvt_f32_i32_e32 v1, v1
; GFX9-NEXT: v_and_b32_e32 v3, 0x7fff7fff, v0
; GFX9-NEXT: s_mov_b32 s4, 0x7fff7fff
; GFX9-NEXT: v_cvt_f16_f32_e32 v2, v2
; GFX9-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX9-NEXT: v_pack_b32_f16 v1, v1, v2
; GFX9-NEXT: v_pk_mul_f16 v1, v3, v1
; GFX9-NEXT: v_bfi_b32 v0, s4, v1, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y = or <2 x i32> %y.arg, <i32 1, i32 1>
%fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
%pownI2F = sitofp <2 x i32> %y to <2 x half>
%ylogx = fmul <2 x half> %fabs, %pownI2F
%cast_x = bitcast <2 x half> %x to <2 x i16>
%pow_sign = and <2 x i16> %cast_x, <i16 -32768, i16 -32768>
%cast_sign = bitcast <2 x i16> %pow_sign to <2 x half>
%pow_sign1 = call <2 x half> @llvm.copysign.v2f16(<2 x half> %ylogx, <2 x half> %cast_sign)
ret <2 x half> %pow_sign1
}
define float @test_pown_reduced_fast_f32_known_odd(float %x, i32 %y.arg) #0 {
; GFX9-LABEL: test_pown_reduced_fast_f32_known_odd:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_or_b32_e32 v1, 1, v1
; GFX9-NEXT: v_cvt_f32_i32_e32 v1, v1
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_mul_f32_e64 v1, |v0|, v1
; GFX9-NEXT: v_bfi_b32 v0, s4, v1, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y = or i32 %y.arg, 1
%fabs = call float @llvm.fabs.f32(float %x)
%pownI2F = sitofp i32 %y to float
%ylogx = fmul float %fabs, %pownI2F
%cast_x = bitcast float %x to i32
%pow_sign = and i32 %cast_x, -2147483648
%cast_sign = bitcast i32 %pow_sign to float
%pow_sign1 = call float @llvm.copysign.f32(float %ylogx, float %cast_sign)
ret float %pow_sign1
}
define <2 x float> @test_pown_reduced_fast_v2f32_known_odd(<2 x float> %x, <2 x i32> %y.arg) #0 {
; GFX9-LABEL: test_pown_reduced_fast_v2f32_known_odd:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_or_b32_e32 v3, 1, v3
; GFX9-NEXT: v_or_b32_e32 v2, 1, v2
; GFX9-NEXT: v_cvt_f32_i32_e32 v3, v3
; GFX9-NEXT: v_cvt_f32_i32_e32 v2, v2
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_mul_f32_e64 v3, |v1|, v3
; GFX9-NEXT: v_mul_f32_e64 v2, |v0|, v2
; GFX9-NEXT: v_bfi_b32 v0, s4, v2, v0
; GFX9-NEXT: v_bfi_b32 v1, s4, v3, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y = or <2 x i32> %y.arg, <i32 1, i32 1>
%fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %x)
%pownI2F = sitofp <2 x i32> %y to <2 x float>
%ylogx = fmul <2 x float> %fabs, %pownI2F
%cast_x = bitcast <2 x float> %x to <2 x i32>
%pow_sign = and <2 x i32> %cast_x, <i32 -2147483648, i32 -2147483648>
%cast_sign = bitcast <2 x i32> %pow_sign to <2 x float>
%pow_sign1 = call <2 x float> @llvm.copysign.v2f32(<2 x float> %ylogx, <2 x float> %cast_sign)
ret <2 x float> %pow_sign1
}
define double @test_pown_reduced_fast_f64_known_odd(double %x, i32 %y.arg) #0 {
; GFX9-LABEL: test_pown_reduced_fast_f64_known_odd:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_or_b32_e32 v2, 1, v2
; GFX9-NEXT: v_cvt_f64_i32_e32 v[2:3], v2
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_mul_f64 v[2:3], |v[0:1]|, v[2:3]
; GFX9-NEXT: v_bfi_b32 v1, s4, v3, v1
; GFX9-NEXT: v_mov_b32_e32 v0, v2
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y = or i32 %y.arg, 1
%fabs = call double @llvm.fabs.f64(double %x)
%pownI2F = sitofp i32 %y to double
%ylogx = fmul double %fabs, %pownI2F
%cast_x = bitcast double %x to i64
%pow_sign = and i64 %cast_x, -9223372036854775808
%cast_sign = bitcast i64 %pow_sign to double
%pow_sign1 = call double @llvm.copysign.f64(double %ylogx, double %cast_sign)
ret double %pow_sign1
}
define <2 x double> @test_pown_reduced_fast_v2f64_known_odd(<2 x double> %x, <2 x i32> %y.arg) #0 {
; GFX9-LABEL: test_pown_reduced_fast_v2f64_known_odd:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_or_b32_e32 v4, 1, v4
; GFX9-NEXT: v_or_b32_e32 v6, 1, v5
; GFX9-NEXT: v_cvt_f64_i32_e32 v[4:5], v4
; GFX9-NEXT: v_cvt_f64_i32_e32 v[6:7], v6
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_mul_f64 v[4:5], |v[0:1]|, v[4:5]
; GFX9-NEXT: v_mul_f64 v[6:7], |v[2:3]|, v[6:7]
; GFX9-NEXT: v_bfi_b32 v1, s4, v5, v1
; GFX9-NEXT: v_bfi_b32 v3, s4, v7, v3
; GFX9-NEXT: v_mov_b32_e32 v0, v4
; GFX9-NEXT: v_mov_b32_e32 v2, v6
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y = or <2 x i32> %y.arg, <i32 1, i32 1>
%fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %x)
%pownI2F = sitofp <2 x i32> %y to <2 x double>
%ylogx = fmul <2 x double> %fabs, %pownI2F
%cast_x = bitcast <2 x double> %x to <2 x i64>
%pow_sign = and <2 x i64> %cast_x, <i64 -9223372036854775808, i64 -9223372036854775808>
%cast_sign = bitcast <2 x i64> %pow_sign to <2 x double>
%pow_sign1 = call <2 x double> @llvm.copysign.f64(<2 x double> %ylogx, <2 x double> %cast_sign)
ret <2 x double> %pow_sign1
}
define float @copysign_f32_f32_sign_known_p0_or_n0(float %x, i32 %y.i) {
; GFX9-LABEL: copysign_f32_f32_sign_known_p0_or_n0:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v0, s4, v0, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%copysign = call float @llvm.copysign.f32(float %x, float %y.even.as.f32)
ret float %copysign
}
define double @copysign_f64_f32_sign_known_p0_or_n0(double %x, i32 %y.i) {
; GFX9-LABEL: copysign_f64_f32_sign_known_p0_or_n0:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshlrev_b32_e32 v2, 31, v2
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v1, s4, v1, v2
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%y.even.as.f32.fpext = fpext float %y.even.as.f32 to double
%copysign = call double @llvm.copysign.f64(double %x, double %y.even.as.f32.fpext)
ret double %copysign
}
define half @copysign_f16_f32_sign_known_p0_or_n0(half %x, i32 %y.i) {
; GFX9-LABEL: copysign_f16_f32_sign_known_p0_or_n0:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: v_lshrrev_b32_e32 v1, 16, v1
; GFX9-NEXT: s_movk_i32 s4, 0x7fff
; GFX9-NEXT: v_bfi_b32 v0, s4, v0, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%y.even.as.f32.fptrunc = fptrunc float %y.even.as.f32 to half
%copysign = call half @llvm.copysign.f16(half %x, half %y.even.as.f32.fptrunc)
ret half %copysign
}
define float @copysign_f32_f32_sign_known_p0_or_n0__mag_known_positive_fabs(float %x.arg, i32 %y.i) {
; GFX9-LABEL: copysign_f32_f32_sign_known_p0_or_n0__mag_known_positive_fabs:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v0, s4, v0, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%x = call float @llvm.fabs.f32(float %x.arg)
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%copysign = call float @llvm.copysign.f32(float %x, float %y.even.as.f32)
ret float %copysign
}
define float @copysign_f32_f32_sign_known_p0_or_n0__mag_known_positive_select(float %x.arg, i32 %y.i) {
; GFX9-LABEL: copysign_f32_f32_sign_known_p0_or_n0__mag_known_positive_select:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_cmp_lt_f32_e32 vcc, 0, v0
; GFX9-NEXT: v_cndmask_b32_e32 v0, 0, v0, vcc
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v0, s4, v0, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%x.ule.0 = fcmp ule float %x.arg, 0.0
%x = select i1 %x.ule.0, float 0.0, float %x.arg
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%copysign = call float @llvm.copysign.f32(float %x, float %y.even.as.f32)
ret float %copysign
}
define float @copysign_f32_f32_sign_known_p0_or_n0__mag_known_positive_nnan_nsz_sqrt(float %x.arg, i32 %y.i) {
; GFX9-LABEL: copysign_f32_f32_sign_known_p0_or_n0__mag_known_positive_nnan_nsz_sqrt:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: s_mov_b32 s4, 0xf800000
; GFX9-NEXT: v_mul_f32_e32 v2, 0x4f800000, v0
; GFX9-NEXT: v_cmp_gt_f32_e32 vcc, s4, v0
; GFX9-NEXT: v_cndmask_b32_e32 v0, v0, v2, vcc
; GFX9-NEXT: v_sqrt_f32_e32 v2, v0
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: v_add_u32_e32 v3, -1, v2
; GFX9-NEXT: v_fma_f32 v4, -v3, v2, v0
; GFX9-NEXT: v_cmp_ge_f32_e64 s[4:5], 0, v4
; GFX9-NEXT: v_add_u32_e32 v4, 1, v2
; GFX9-NEXT: v_cndmask_b32_e64 v3, v2, v3, s[4:5]
; GFX9-NEXT: v_fma_f32 v2, -v4, v2, v0
; GFX9-NEXT: v_cmp_lt_f32_e64 s[4:5], 0, v2
; GFX9-NEXT: v_cndmask_b32_e64 v2, v3, v4, s[4:5]
; GFX9-NEXT: v_mul_f32_e32 v3, 0x37800000, v2
; GFX9-NEXT: v_cndmask_b32_e32 v2, v2, v3, vcc
; GFX9-NEXT: v_mov_b32_e32 v3, 0x260
; GFX9-NEXT: v_cmp_class_f32_e32 vcc, v0, v3
; GFX9-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v0, s4, v0, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%x = call nnan nsz float @llvm.sqrt.f32(float %x.arg)
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%copysign = call float @llvm.copysign.f32(float %x, float %y.even.as.f32)
ret float %copysign
}
define float @copysign_f32_f32_sign_known_p0_or_n0__mag_almost_positive_nsz_sqrt(float %x.arg, i32 %y.i) {
; GFX9-LABEL: copysign_f32_f32_sign_known_p0_or_n0__mag_almost_positive_nsz_sqrt:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: s_mov_b32 s4, 0xf800000
; GFX9-NEXT: v_mul_f32_e32 v2, 0x4f800000, v0
; GFX9-NEXT: v_cmp_gt_f32_e32 vcc, s4, v0
; GFX9-NEXT: v_cndmask_b32_e32 v0, v0, v2, vcc
; GFX9-NEXT: v_sqrt_f32_e32 v2, v0
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: v_add_u32_e32 v3, -1, v2
; GFX9-NEXT: v_fma_f32 v4, -v3, v2, v0
; GFX9-NEXT: v_cmp_ge_f32_e64 s[4:5], 0, v4
; GFX9-NEXT: v_add_u32_e32 v4, 1, v2
; GFX9-NEXT: v_cndmask_b32_e64 v3, v2, v3, s[4:5]
; GFX9-NEXT: v_fma_f32 v2, -v4, v2, v0
; GFX9-NEXT: v_cmp_lt_f32_e64 s[4:5], 0, v2
; GFX9-NEXT: v_cndmask_b32_e64 v2, v3, v4, s[4:5]
; GFX9-NEXT: v_mul_f32_e32 v3, 0x37800000, v2
; GFX9-NEXT: v_cndmask_b32_e32 v2, v2, v3, vcc
; GFX9-NEXT: v_mov_b32_e32 v3, 0x260
; GFX9-NEXT: v_cmp_class_f32_e32 vcc, v0, v3
; GFX9-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v0, s4, v0, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%x = call nsz float @llvm.sqrt.f32(float %x.arg)
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%copysign = call float @llvm.copysign.f32(float %x, float %y.even.as.f32)
ret float %copysign
}
define float @copysign_f32_f32_sign_known_p0_or_n0__mag_almost_positive_nnan_sqrt(float %x.arg, i32 %y.i) {
; GFX9-LABEL: copysign_f32_f32_sign_known_p0_or_n0__mag_almost_positive_nnan_sqrt:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: s_mov_b32 s4, 0xf800000
; GFX9-NEXT: v_mul_f32_e32 v2, 0x4f800000, v0
; GFX9-NEXT: v_cmp_gt_f32_e32 vcc, s4, v0
; GFX9-NEXT: v_cndmask_b32_e32 v0, v0, v2, vcc
; GFX9-NEXT: v_sqrt_f32_e32 v2, v0
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: v_add_u32_e32 v3, -1, v2
; GFX9-NEXT: v_fma_f32 v4, -v3, v2, v0
; GFX9-NEXT: v_cmp_ge_f32_e64 s[4:5], 0, v4
; GFX9-NEXT: v_add_u32_e32 v4, 1, v2
; GFX9-NEXT: v_cndmask_b32_e64 v3, v2, v3, s[4:5]
; GFX9-NEXT: v_fma_f32 v2, -v4, v2, v0
; GFX9-NEXT: v_cmp_lt_f32_e64 s[4:5], 0, v2
; GFX9-NEXT: v_cndmask_b32_e64 v2, v3, v4, s[4:5]
; GFX9-NEXT: v_mul_f32_e32 v3, 0x37800000, v2
; GFX9-NEXT: v_cndmask_b32_e32 v2, v2, v3, vcc
; GFX9-NEXT: v_mov_b32_e32 v3, 0x260
; GFX9-NEXT: v_cmp_class_f32_e32 vcc, v0, v3
; GFX9-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v0, s4, v0, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
%x = call nnan float @llvm.sqrt.f32(float %x.arg)
%y.even = shl i32 %y.i, 31
%y.even.as.f32 = bitcast i32 %y.even to float
%copysign = call float @llvm.copysign.f32(float %x, float %y.even.as.f32)
ret float %copysign
}
define float @test_copysign_pow_fast_f32__integral_y(float %x, i32 %y.i) {
; GFX9-LABEL: test_copysign_pow_fast_f32__integral_y:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: s_mov_b32 s4, 0x800000
; GFX9-NEXT: v_cmp_lt_f32_e64 vcc, |v0|, s4
; GFX9-NEXT: v_cndmask_b32_e64 v3, 0, 32, vcc
; GFX9-NEXT: v_ldexp_f32 v3, |v0|, v3
; GFX9-NEXT: v_log_f32_e32 v3, v3
; GFX9-NEXT: v_cvt_f32_i32_e32 v1, v1
; GFX9-NEXT: v_mov_b32_e32 v2, 0x42000000
; GFX9-NEXT: v_cndmask_b32_e32 v2, 0, v2, vcc
; GFX9-NEXT: v_sub_f32_e32 v2, v3, v2
; GFX9-NEXT: v_mul_f32_e32 v3, v2, v1
; GFX9-NEXT: s_mov_b32 s4, 0xc2fc0000
; GFX9-NEXT: v_mov_b32_e32 v4, 0x42800000
; GFX9-NEXT: v_cmp_gt_f32_e32 vcc, s4, v3
; GFX9-NEXT: v_cndmask_b32_e32 v3, 0, v4, vcc
; GFX9-NEXT: v_fma_f32 v2, v2, v1, v3
; GFX9-NEXT: v_cvt_i32_f32_e32 v1, v1
; GFX9-NEXT: v_exp_f32_e32 v2, v2
; GFX9-NEXT: v_not_b32_e32 v3, 63
; GFX9-NEXT: v_cndmask_b32_e32 v3, 0, v3, vcc
; GFX9-NEXT: v_lshlrev_b32_e32 v1, 31, v1
; GFX9-NEXT: v_ldexp_f32 v2, v2, v3
; GFX9-NEXT: v_and_b32_e32 v0, v1, v0
; GFX9-NEXT: s_brev_b32 s4, -2
; GFX9-NEXT: v_bfi_b32 v0, s4, v2, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
%y = sitofp i32 %y.i to float
%y.fptosi = fptosi float %y to i32
%fabs = call fast float @llvm.fabs.f32(float %x)
%log2 = call fast float @llvm.log2.f32(float %fabs)
%pownI2F = sitofp i32 %y.i to float
%ylogx = fmul fast float %log2, %pownI2F
%exp2 = call fast float @llvm.exp2.f32(float %ylogx)
%yeven = shl i32 %y.fptosi, 31
%x.i32 = bitcast float %x to i32
%pow_sign = and i32 %yeven, %x.i32
%pow_sign.f32 = bitcast i32 %pow_sign to float
%pow_sign1 = call fast float @llvm.copysign.f32(float %exp2, float %pow_sign.f32)
ret float %pow_sign1
}
attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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