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94c9dd7bff
Improve the code generation of build_vector. Use the v_pack_b32_f16 instruction instead of v_and_b32 + v_lshl_or_b32 Differential Revision: https://reviews.llvm.org/D98081 Patch by Julien Pagès!
220 lines
8.7 KiB
LLVM
220 lines
8.7 KiB
LLVM
;RUN: llc -mtriple=amdgcn-- < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=SI %s
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;RUN: llc -mtriple=amdgcn-- -mcpu=fiji < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=VI %s
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;RUN: llc -mtriple=amdgcn-- -mcpu=gfx900 < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=GFX9 %s
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define float @v_exp_f32(float %arg0) {
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; SI-LABEL: v_exp_f32:
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; SI: ; %bb.0:
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; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; SI-NEXT: v_mul_f32_e32 v0, 0x3fb8aa3b, v0
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; SI-NEXT: v_exp_f32_e32 v0, v0
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; SI-NEXT: s_setpc_b64 s[30:31]
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;
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; VI-LABEL: v_exp_f32:
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; VI: ; %bb.0:
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; VI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; VI-NEXT: v_mul_f32_e32 v0, 0x3fb8aa3b, v0
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; VI-NEXT: v_exp_f32_e32 v0, v0
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; VI-NEXT: s_setpc_b64 s[30:31]
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;
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; GFX9-LABEL: v_exp_f32:
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; GFX9: ; %bb.0:
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; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; GFX9-NEXT: v_mul_f32_e32 v0, 0x3fb8aa3b, v0
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; GFX9-NEXT: v_exp_f32_e32 v0, v0
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; GFX9-NEXT: s_setpc_b64 s[30:31]
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%result = call float @llvm.exp.f32(float %arg0)
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ret float %result
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}
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define <2 x float> @v_exp_v2f32(<2 x float> %arg0) {
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; GCN-LABEL: v_exp_v2f32:
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; GCN: ; %bb.0:
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; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; GCN-NEXT: s_mov_b32 [[SREG:s[0-9]+]], 0x3fb8aa3b
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; GCN-NEXT: v_mul_f32_e32 v{{[0-9]+}}, [[SREG]], v{{[0-9]+}}
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; GCN-NEXT: v_mul_f32_e32 v{{[0-9]+}}, [[SREG]], v{{[0-9]+}}
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; GCN-NEXT: v_exp_f32_e32 v0, v0
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; GCN-NEXT: v_exp_f32_e32 v1, v1
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; GCN-NEXT: s_setpc_b64 s[30:31]
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%result = call <2 x float> @llvm.exp.v2f32(<2 x float> %arg0)
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ret <2 x float> %result
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}
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define <3 x float> @v_exp_v3f32(<3 x float> %arg0) {
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; GCN-LABEL: v_exp_v3f32:
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; GCN: ; %bb.0:
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; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; GCN-NEXT: s_mov_b32 [[SREG:s[0-9]+]], 0x3fb8aa3b
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; GCN-NEXT: v_mul_f32_e32 v{{[0-9]+}}, [[SREG]], v{{[0-9]+}}
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; GCN-NEXT: v_mul_f32_e32 v{{[0-9]+}}, [[SREG]], v{{[0-9]+}}
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; GCN-NEXT: v_mul_f32_e32 v{{[0-9]+}}, [[SREG]], v{{[0-9]+}}
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; GCN-NEXT: v_exp_f32_e32 v0, v0
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; GCN-NEXT: v_exp_f32_e32 v1, v1
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; GCN-NEXT: v_exp_f32_e32 v2, v2
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; GCN-NEXT: s_setpc_b64 s[30:31]
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;
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%result = call <3 x float> @llvm.exp.v3f32(<3 x float> %arg0)
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ret <3 x float> %result
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}
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define <4 x float> @v_exp_v4f32(<4 x float> %arg0) {
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; SI-LABEL: v_exp_v4f32:
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; SI: ; %bb.0:
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; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; SI-NEXT: s_mov_b32 [[SREG:s[0-9]+]], 0x3fb8aa3b
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; SI-NEXT: v_mul_f32_e32 v0, [[SREG]], v0
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; SI-NEXT: v_mul_f32_e32 v1, [[SREG]], v1
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; SI-NEXT: v_mul_f32_e32 v2, [[SREG]], v2
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; SI-NEXT: v_mul_f32_e32 v3, [[SREG]], v3
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; SI-NEXT: v_exp_f32_e32 v0, v0
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; SI-NEXT: v_exp_f32_e32 v1, v1
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; SI-NEXT: v_exp_f32_e32 v2, v2
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; SI-NEXT: v_exp_f32_e32 v3, v3
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; SI-NEXT: s_setpc_b64 s[30:31]
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%result = call <4 x float> @llvm.exp.v4f32(<4 x float> %arg0)
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ret <4 x float> %result
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}
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define half @v_exp_f16(half %arg0) {
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; SI-LABEL: v_exp_f16:
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; SI: ; %bb.0:
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; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; SI-NEXT: v_cvt_f16_f32_e32 v0, v0
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; SI-NEXT: v_cvt_f32_f16_e32 v0, v0
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; SI-NEXT: v_mul_f32_e32 v0, 0x3fb8aa3b, v0
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; SI-NEXT: v_exp_f32_e32 v0, v0
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; SI-NEXT: s_setpc_b64 s[30:31]
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;
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; VI-LABEL: v_exp_f16:
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; VI: ; %bb.0:
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; VI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; VI-NEXT: v_mul_f16_e32 v0, 0x3dc5, v0
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; VI-NEXT: v_exp_f16_e32 v0, v0
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; VI-NEXT: s_setpc_b64 s[30:31]
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;
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; GFX9-LABEL: v_exp_f16:
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; GFX9: ; %bb.0:
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; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; GFX9-NEXT: v_mul_f16_e32 v0, 0x3dc5, v0
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; GFX9-NEXT: v_exp_f16_e32 v0, v0
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; GFX9-NEXT: s_setpc_b64 s[30:31]
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%result = call half @llvm.exp.f16(half %arg0)
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ret half %result
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}
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define <2 x half> @v_exp_v2f16(<2 x half> %arg0) {
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; SI-LABEL: v_exp_v2f16:
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; SI: ; %bb.0:
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; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; SI-NEXT: v_cvt_f16_f32_e32 v1, v1
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; SI-NEXT: v_cvt_f16_f32_e32 v0, v0
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; SI-NEXT: s_mov_b32 [[SREG:s[0-9]+]], 0x3fb8aa3b
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; SI-NEXT: v_cvt_f32_f16_e32 v1, v1
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; SI-NEXT: v_cvt_f32_f16_e32 v0, v0
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; SI-NEXT: v_mul_f32_e32 v{{[0-9]+}}, [[SREG]], v{{[0-9]+}}
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; SI-NEXT: v_mul_f32_e32 v{{[0-9]+}}, [[SREG]], v{{[0-9]+}}
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; SI-NEXT: v_exp_f32_e32 v0, v0
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; SI-NEXT: v_exp_f32_e32 v1, v1
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; SI-NEXT: s_setpc_b64 s[30:31]
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;
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; VI-LABEL: v_exp_v2f16:
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; VI: ; %bb.0:
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; VI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; VI-NEXT: s_movk_i32 [[SREG:s[0-9]+]], 0x3dc5
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; VI-NEXT: v_mov_b32_e32 [[VREG:v[0-9]+]], [[SREG]]
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; VI-NEXT: v_mul_f16_sdwa [[MUL1:v[0-9]+]], v{{[0-9]+}}, [[VREG]] dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
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; VI-NEXT: v_mul_f16_e32 [[MUL2:v[0-9]+]], [[SREG]], v{{[0-9]+}}
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; VI-NEXT: v_exp_f16_sdwa [[MUL1]], [[MUL1]] dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:DWORD
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; VI-NEXT: v_exp_f16_e32 [[MUL2]], [[MUL2]]
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; VI-NEXT: v_or_b32_e32 v{{[0-9]+}}, [[MUL2]], [[MUL1]]
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; VI-NEXT: s_setpc_b64 s[30:31]
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;
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; GFX9-LABEL: v_exp_v2f16:
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; GFX9: ; %bb.0:
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; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; GFX9-NEXT: s_movk_i32 [[SREG:s[0-9]+]], 0x3dc5
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; GFX9-NEXT: v_pk_mul_f16 v0, v0, [[SREG]] op_sel_hi:[1,0]
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; GFX9-NEXT: v_exp_f16_e32 v1, v0
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; GFX9-NEXT: v_exp_f16_sdwa v0, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1
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; GFX9-NEXT: v_pack_b32_f16 v0, v1, v0
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; GFX9-NEXT: s_setpc_b64 s[30:31]
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%result = call <2 x half> @llvm.exp.v2f16(<2 x half> %arg0)
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ret <2 x half> %result
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}
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; define <3 x half> @v_exp_v3f16(<3 x half> %arg0) {
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; %result = call <3 x half> @llvm.exp.v3f16(<3 x half> %arg0)
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; ret <3 x half> %result
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; }
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define <4 x half> @v_exp_v4f16(<4 x half> %arg0) {
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; SI-LABEL: v_exp_v4f16:
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; SI: ; %bb.0:
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; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; SI-NEXT: v_cvt_f16_f32_e32 v3, v3
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; SI-NEXT: v_cvt_f16_f32_e32 v2, v2
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; SI-NEXT: v_cvt_f16_f32_e32 v1, v1
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; SI-NEXT: v_cvt_f16_f32_e32 v0, v0
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; SI-NEXT: s_mov_b32 [[SREG:s[0-9]+]], 0x3fb8aa3b
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; SI-NEXT: v_cvt_f32_f16_e32 v3, v3
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; SI-NEXT: v_cvt_f32_f16_e32 v2, v2
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; SI-NEXT: v_cvt_f32_f16_e32 v1, v1
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; SI-NEXT: v_cvt_f32_f16_e32 v0, v0
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; SI-NEXT: v_mul_f32_e32 v0, [[SREG]], v0
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; SI-NEXT: v_mul_f32_e32 v1, [[SREG]], v1
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; SI-NEXT: v_mul_f32_e32 v2, [[SREG]], v2
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; SI-NEXT: v_mul_f32_e32 v3, [[SREG]], v3
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; SI-NEXT: v_exp_f32_e32 v0, v0
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; SI-NEXT: v_exp_f32_e32 v1, v1
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; SI-NEXT: v_exp_f32_e32 v2, v2
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; SI-NEXT: v_exp_f32_e32 v3, v3
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; SI-NEXT: s_setpc_b64 s[30:31]
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;
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; VI-LABEL: v_exp_v4f16:
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; VI: ; %bb.0:
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; VI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; VI-NEXT: s_movk_i32 [[SREG:s[0-9]+]], 0x3dc5
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; VI-NEXT: v_mov_b32_e32 [[VREG:v[0-9]+]], [[SREG]]
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; VI-NEXT: v_mul_f16_e32 [[MUL1:v[0-9]+]], [[SREG]], v1
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; VI-NEXT: v_mul_f16_e32 [[MUL2:v[0-9]+]], [[SREG]], v0
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; VI-NEXT: v_mul_f16_sdwa [[MUL3:v[0-9]+]], v1, [[VREG]] dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
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; VI-NEXT: v_mul_f16_sdwa [[MUL4:v[0-9]+]], v0, [[VREG]] dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
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; VI-NEXT: v_exp_f16_e32 [[EXP1:v[0-9]+]], [[MUL1]]
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; VI-NEXT: v_exp_f16_sdwa [[EXP2:v[0-9]+]], v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:DWORD
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; VI-NEXT: v_exp_f16_e32 [[EXP3:v[0-9]+]], [[MUL2]]
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; VI-NEXT: v_exp_f16_sdwa [[EXP4:v[0-9]+]], v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:DWORD
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; VI-NEXT: v_or_b32_e32 v1, [[EXP1]], [[EXP2]]
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; VI-NEXT: v_or_b32_e32 v0, [[EXP3]], [[EXP4]]
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; VI-NEXT: s_setpc_b64 s[30:31]
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;
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; GFX9-LABEL: v_exp_v4f16:
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; GFX9: ; %bb.0:
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; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; GFX9-NEXT: s_movk_i32 [[SREG:s[0-9]+]], 0x3dc5
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; GFX9-NEXT: v_mul_f16_e32 [[MUL1:v[0-9]+]], [[SREG]], v1
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; GFX9-NEXT: v_mul_f16_e32 [[MUL2:v[0-9]+]], [[SREG]], v0
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; GFX9-NEXT: v_mul_f16_sdwa [[MUL3:v[0-9]+]], v1, [[SREG]] dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
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; GFX9-NEXT: v_mul_f16_sdwa [[MUL4:v[0-9]+]], v0, [[SREG]] dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
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; GFX9-NEXT: v_exp_f16_e32 [[EXP1:v[0-9]+]], [[MUL1]]
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; GFX9-NEXT: v_exp_f16_e32 [[EXP2:v[0-9]+]], [[MUL3]]
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; GFX9-NEXT: v_exp_f16_e32 [[EXP3:v[0-9]+]], [[MUL2]]
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; GFX9-NEXT: v_exp_f16_e32 [[EXP4:v[0-9]+]], [[MUL4]]
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; GFX9-NEXT: v_pack_b32_f16 v1, [[EXP1]], [[EXP2]]
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; GFX9-NEXT: v_pack_b32_f16 v0, [[EXP3]], [[EXP4]]
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; GFX9-NEXT: s_setpc_b64 s[30:31]
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%result = call <4 x half> @llvm.exp.v4f16(<4 x half> %arg0)
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ret <4 x half> %result
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}
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declare float @llvm.exp.f32(float)
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declare <2 x float> @llvm.exp.v2f32(<2 x float>)
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declare <3 x float> @llvm.exp.v3f32(<3 x float>)
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declare <4 x float> @llvm.exp.v4f32(<4 x float>)
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declare half @llvm.exp.f16(half)
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declare <2 x half> @llvm.exp.v2f16(<2 x half>)
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declare <3 x half> @llvm.exp.v3f16(<3 x half>)
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declare <4 x half> @llvm.exp.v4f16(<4 x half>)
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