mirror of
https://github.com/RPCS3/llvm.git
synced 2026-07-19 23:23:38 -04:00
Tim Renouf
5e96e38d96
Summary: This fixes a problem where a load from global+idx generated incorrect code on <=gfx7 when the index is divergent. Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, t-tye, llvm-commits Differential Revision: https://reviews.llvm.org/D47383 Change-Id: Ib4d177d6254b1dd3f8ec0203fdddec94bd8bc5ed git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338779 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
3.7 KiB
LLVM
71 lines
3.7 KiB
LLVM
; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=SIVI -check-prefix=FUNC %s
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=SIVI -check-prefix=VIGFX9 -check-prefix=FUNC %s
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX9 -check-prefix=VIGFX9 -check-prefix=FUNC %s
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declare half @llvm.log.f16(half %a)
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declare <2 x half> @llvm.log.v2f16(<2 x half> %a)
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; FUNC-LABEL: {{^}}log_f16
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; SI: buffer_load_ushort v[[A_F16_0:[0-9]+]]
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; VI: flat_load_ushort v[[A_F16_0:[0-9]+]]
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; GFX9: global_load_ushort v[[A_F16_0:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32_0:[0-9]+]], v[[A_F16_0]]
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; SI: v_log_f32_e32 v[[R_F32_0:[0-9]+]], v[[A_F32_0]]
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; SI: v_mul_f32_e32 v[[R_F32_1:[0-9]+]], 0x3f317218, v[[R_F32_0]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16_0:[0-9]+]], v[[R_F32_1]]
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; VIGFX9: v_log_f16_e32 v[[R_F16_0:[0-9]+]], v[[A_F16_0]]
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; VIGFX9: v_mul_f16_e32 v[[R_F16_0]], 0x398c, v[[R_F16_0]]
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; SI: buffer_store_short v[[R_F16_0]], v{{\[[0-9]+:[0-9]+\]}}
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; VI: flat_store_short v{{\[[0-9]+:[0-9]+\]}}, v[[R_F16_0]]
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; GFX9: global_store_short v{{\[[0-9]+:[0-9]+\]}}, v[[R_F16_0]]
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define void @log_f16(
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half addrspace(1)* %r,
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half addrspace(1)* %a) {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%r.val = call half @llvm.log.f16(half %a.val)
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; FUNC-LABEL: {{^}}log_v2f16
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; SI: buffer_load_dword v[[A_F16_0:[0-9]+]]
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; VI: flat_load_dword v[[A_F16_0:[0-9]+]]
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; GFX9: global_load_dword v[[A_F16_0:[0-9]+]]
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; SI: v_mov_b32_e32 v[[A_F32_2:[0-9]+]], 0x3f317218
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; VIGFX9: v_mov_b32_e32 v[[A_F32_2:[0-9]+]], 0x398c
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; SI: v_cvt_f32_f16_e32 v[[A_F32_1:[0-9]+]], v[[A_F16_0]]
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; SI: v_lshrrev_b32_e32 v[[A_F16_1:[0-9]+]], 16, v[[A_F16_0]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32_0:[0-9]+]], v[[A_F16_0]]
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; SI: v_log_f32_e32 v[[R_F32_1:[0-9]+]], v[[A_F32_1]]
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; SI: v_log_f32_e32 v[[R_F32_0:[0-9]+]], v[[A_F32_0]]
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; SI: v_mul_f32_e32 v[[R_F32_6:[0-9]+]], v[[R_F32_1]], v[[A_F32_2]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16_1:[0-9]+]], v[[R_F32_6]]
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; SI: v_mul_f32_e32 v[[R_F32_5:[0-9]+]], v[[R_F32_0]], v[[A_F32_2]]
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; SI: v_cvt_f16_f32_e32 v[[R_F16_0:[0-9]+]], v[[R_F32_5]]
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; GFX9: v_log_f16_e32 v[[R_F16_2:[0-9]+]], v[[A_F16_0]]
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; VIGFX9: v_log_f16_sdwa v[[R_F16_1:[0-9]+]], v[[A_F16_0]] dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1
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; VI: v_log_f16_e32 v[[R_F16_0:[0-9]+]], v[[A_F16_0]]
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; VI: v_mul_f16_sdwa v[[R_F16_2:[0-9]+]], v[[R_F16_1]], v[[A_F32_2]] dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
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; GFX9: v_mul_f16_e32 v[[R_F32_3:[0-9]+]], v[[R_F16_2]], v[[A_F32_2]]
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; VIGFX9: v_mul_f16_e32 v[[R_F32_2:[0-9]+]], v[[R_F16_0]], v[[A_F32_2]]
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; SI: v_lshlrev_b32_e32 v[[R_F16_HI:[0-9]+]], 16, v[[R_F16_0]]
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; SI-NOT: v_and_b32_e32
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; SI: v_or_b32_e32 v[[R_F32_5:[0-9]+]], v[[R_F16_1]], v[[R_F16_0]]
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; VI-NOT: v_and_b32_e32
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; VI: v_or_b32_e32 v[[R_F32_5:[0-9]+]], v[[R_F16_0]], v[[R_F16_2]]
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; GFX9: v_and_b32_e32 v[[R_F32_4:[0-9]+]], 0xffff, v[[R_F32_3]]
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; GFX9: v_lshl_or_b32 v[[R_F32_5:[0-9]+]], v[[R_F32_2]], 16, v[[R_F32_4]]
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; SI: buffer_store_dword v[[R_F32_5]]
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; VI: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, v[[R_F32_5]]
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; GFX9: global_store_dword v{{\[[0-9]+:[0-9]+\]}}, v[[R_F32_5]]
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define void @log_v2f16(
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<2 x half> addrspace(1)* %r,
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<2 x half> addrspace(1)* %a) {
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entry:
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%a.val = load <2 x half>, <2 x half> addrspace(1)* %a
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%r.val = call <2 x half> @llvm.log.v2f16(<2 x half> %a.val)
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store <2 x half> %r.val, <2 x half> addrspace(1)* %r
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ret void
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}
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