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MCP: Fixed bug with dest overlapping copy source In MachineCopyPropagation, when propagating the source of a copy into the operand of a later instruction, bail if a destination overlaps (partly defines) the copy source. If the instruction where the substitution is happening is also a copy, allowing the propagation confuses the tracking mechanism. Differential Revision: https://reviews.llvm.org/D69953 Change-Id: Ic570754f878f2d91a4a50a9bdcf96fbaa240726d
2019-11-11 19:06:09 +08:00
# RUN: llc -march=amdgcn -mcpu=gfx1010 %s -o - -run-pass machine-cp -verify-machineinstrs | FileCheck %s
#
# The MachineCopyPropagation bug being tested propagates s[60:67] into the copy
# into s[56:63], and then uses s[60:67] in the following
# IMAGE_SAMPLE_V3_V2_gfx10, even though it has just overwritten half of it.
# CHECK-LABEL: name: _amdgpu_ps_main
# CHECK-NOT: IMAGE_SAMPLE_V3_V2_gfx10 {{.*}} $sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67
# CHECK: IMAGE_SAMPLE_V3_V2_gfx10 {{.*}} $sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95
---
name: _amdgpu_ps_main
body: |
bb.0:
successors:
liveins: $sgpr2, $sgpr3, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr5, $vgpr70, $vgpr71
renamable $sgpr8_sgpr9 = S_GETPC_B64
renamable $sgpr8 = COPY killed renamable $sgpr2
renamable $sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67 = S_LOAD_DWORDX8_IMM renamable $sgpr8_sgpr9, 144, 0, 0 :: (invariant load 32, align 16, addrspace 4)
renamable $sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95 = COPY killed renamable $sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67
[AMDGPU] Add a16 feature to gfx10 Based on D72931 This adds a new feature called A16 which is enabled for gfx10. gfx9 keeps the R128A16 feature so it can share all the instruction encodings with gfx7/8. Differential Revision: https://reviews.llvm.org/D73956
2020-01-29 17:04:36 +08:00
renamable $vgpr4 = IMAGE_GET_LOD_V1_V2_gfx10 renamable $vgpr70_vgpr71, renamable $sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95, renamable $sgpr96_sgpr97_sgpr98_sgpr99, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec
MCP: Fixed bug with dest overlapping copy source In MachineCopyPropagation, when propagating the source of a copy into the operand of a later instruction, bail if a destination overlaps (partly defines) the copy source. If the instruction where the substitution is happening is also a copy, allowing the propagation confuses the tracking mechanism. Differential Revision: https://reviews.llvm.org/D69953 Change-Id: Ic570754f878f2d91a4a50a9bdcf96fbaa240726d
2019-11-11 19:06:09 +08:00
renamable $sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63 = COPY killed renamable $sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95
[AMDGPU] Add a16 feature to gfx10 Based on D72931 This adds a new feature called A16 which is enabled for gfx10. gfx9 keeps the R128A16 feature so it can share all the instruction encodings with gfx7/8. Differential Revision: https://reviews.llvm.org/D73956
2020-01-29 17:04:36 +08:00
renamable $vgpr12_vgpr13_vgpr14 = IMAGE_SAMPLE_V3_V2_gfx10 renamable $vgpr70_vgpr71, renamable $sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63, renamable $sgpr96_sgpr97_sgpr98_sgpr99, 7, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load 12, align 16)
MCP: Fixed bug with dest overlapping copy source In MachineCopyPropagation, when propagating the source of a copy into the operand of a later instruction, bail if a destination overlaps (partly defines) the copy source. If the instruction where the substitution is happening is also a copy, allowing the propagation confuses the tracking mechanism. Differential Revision: https://reviews.llvm.org/D69953 Change-Id: Ic570754f878f2d91a4a50a9bdcf96fbaa240726d
2019-11-11 19:06:09 +08:00
S_ENDPGM 0
...