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AMDGPU/GlobalISel: Allow selection of DS atomicrmw llvm-svn: 367507
2019-08-01 11:29:01 +08:00
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=tahiti -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s | FileCheck -check-prefix=GFX6 %s
# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s | FileCheck -check-prefix=GFX7 %s
# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s | FileCheck -check-prefix=GFX7 %s
# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s | FileCheck -check-prefix=GFX9 %s
# RUN: llc -march=amdgcn -mcpu=gfx1010 -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s | FileCheck -check-prefix=GFX9 %s
---
name: atomicrmw_xchg_s32_local
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; GFX6-LABEL: name: atomicrmw_xchg_s32_local
; GFX6: liveins: $vgpr0, $vgpr1
; GFX6: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GFX6: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GFX6: $m0 = S_MOV_B32 -1
; GFX6: [[DS_WRXCHG_RTN_B32_:%[0-9]+]]:vgpr_32 = DS_WRXCHG_RTN_B32 [[COPY]], [[COPY1]], 0, 0, implicit $m0, implicit $exec :: (load store seq_cst 4, addrspace 3)
; GFX6: $vgpr0 = COPY [[DS_WRXCHG_RTN_B32_]]
; GFX7-LABEL: name: atomicrmw_xchg_s32_local
; GFX7: liveins: $vgpr0, $vgpr1
; GFX7: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GFX7: $m0 = S_MOV_B32 -1
; GFX7: [[DS_WRXCHG_RTN_B32_:%[0-9]+]]:vgpr_32 = DS_WRXCHG_RTN_B32 [[COPY]], [[COPY1]], 0, 0, implicit $m0, implicit $exec :: (load store seq_cst 4, addrspace 3)
; GFX7: $vgpr0 = COPY [[DS_WRXCHG_RTN_B32_]]
; GFX9-LABEL: name: atomicrmw_xchg_s32_local
; GFX9: liveins: $vgpr0, $vgpr1
; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GFX9: [[DS_WRXCHG_RTN_B32_gfx9_:%[0-9]+]]:vgpr_32 = DS_WRXCHG_RTN_B32_gfx9 [[COPY]], [[COPY1]], 0, 0, implicit $exec :: (load store seq_cst 4, addrspace 3)
; GFX9: $vgpr0 = COPY [[DS_WRXCHG_RTN_B32_gfx9_]]
%0:vgpr(p3) = COPY $vgpr0
%1:vgpr(s32) = COPY $vgpr1
%2:vgpr(s32) = G_ATOMICRMW_XCHG %0(p3), %1 :: (load store seq_cst 4, addrspace 3)
$vgpr0 = COPY %2
...
---
name: atomicrmw_xchg_s32_local_gep4
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; GFX6-LABEL: name: atomicrmw_xchg_s32_local_gep4
; GFX6: liveins: $vgpr0, $vgpr1
; GFX6: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GFX6: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GFX6: [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 4, implicit $exec
AMDGPU: Rename add/sub with carry out instructions The hardware has created a real mess in the naming for add/sub, which have been renamed basically every generation. Switch the carry out pseudos to have the gfx9/gfx10 names. We were using the original SI/CI v_add_i32/v_sub_i32 names. Later targets reintroduced these names as carryless instructions with a saturating clamp bit, which we do not define. Do this rename so we can unambiguously add these missing instructions. The carry-in versions should also be renamed, but at least those had a consistent _u32 name to begin with. The 16-bit instructions were also renamed, but aren't ambiguous. This does regress assembler error message quality in some cases. In mismatched wave32/wave64 situations, this will switch from "unsupported instruction" to "invalid operand", with the error pointing at the wrong position. I couldn't quite follow how the assembler selects these, but the previous behavior seemed accidental to me. It looked like there was a partial attempt to handle this which was never completed (i.e. there is an AMDGPUOperand::isBoolReg but it isn't used for anything).
2020-07-14 21:18:36 +08:00
; GFX6: %3:vgpr_32, dead %5:sreg_64_xexec = V_ADD_CO_U32_e64 [[COPY]], [[V_MOV_B32_e32_]], 0, implicit $exec
AMDGPU/GlobalISel: Allow selection of DS atomicrmw llvm-svn: 367507
2019-08-01 11:29:01 +08:00
; GFX6: $m0 = S_MOV_B32 -1
; GFX6: [[DS_WRXCHG_RTN_B32_:%[0-9]+]]:vgpr_32 = DS_WRXCHG_RTN_B32 %3, [[COPY1]], 0, 0, implicit $m0, implicit $exec :: (load store seq_cst 4, addrspace 3)
; GFX6: $vgpr0 = COPY [[DS_WRXCHG_RTN_B32_]]
; GFX7-LABEL: name: atomicrmw_xchg_s32_local_gep4
; GFX7: liveins: $vgpr0, $vgpr1
; GFX7: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GFX7: $m0 = S_MOV_B32 -1
; GFX7: [[DS_WRXCHG_RTN_B32_:%[0-9]+]]:vgpr_32 = DS_WRXCHG_RTN_B32 [[COPY]], [[COPY1]], 4, 0, implicit $m0, implicit $exec :: (load store seq_cst 4, addrspace 3)
; GFX7: $vgpr0 = COPY [[DS_WRXCHG_RTN_B32_]]
; GFX9-LABEL: name: atomicrmw_xchg_s32_local_gep4
; GFX9: liveins: $vgpr0, $vgpr1
; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GFX9: [[DS_WRXCHG_RTN_B32_gfx9_:%[0-9]+]]:vgpr_32 = DS_WRXCHG_RTN_B32_gfx9 [[COPY]], [[COPY1]], 4, 0, implicit $exec :: (load store seq_cst 4, addrspace 3)
; GFX9: $vgpr0 = COPY [[DS_WRXCHG_RTN_B32_gfx9_]]
%0:vgpr(p3) = COPY $vgpr0
%1:vgpr(s32) = COPY $vgpr1
%2:vgpr(s32) = G_CONSTANT i32 4
[globalisel] Rename G_GEP to G_PTR_ADD Summary: G_GEP is rather poorly named. It's a simple pointer+scalar addition and doesn't support any of the complexities of getelementptr. I therefore propose that we rename it. There's a G_PTR_MASK so let's follow that convention and go with G_PTR_ADD Reviewers: volkan, aditya_nandakumar, bogner, rovka, arsenm Subscribers: sdardis, jvesely, wdng, nhaehnle, hiraditya, jrtc27, atanasyan, arphaman, Petar.Avramovic, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D69734
2019-11-02 04:18:00 +08:00
%3:vgpr(p3) = G_PTR_ADD %0, %2
AMDGPU/GlobalISel: Allow selection of DS atomicrmw llvm-svn: 367507
2019-08-01 11:29:01 +08:00
%4:vgpr(s32) = G_ATOMICRMW_XCHG %3(p3), %1 :: (load store seq_cst 4, addrspace 3)
$vgpr0 = COPY %4
...