2ee12f191a
On targets that require even aligned 64-bit VGPRs, GWS operands require even alignment of a 32-bit operand. Previously we had a hacky post-processing which added an implicit operand to try to manage the constraint. This would require special casing in other passes to avoid breaking the operand constraint. This moves the handling into the instruction definition, so other passes no longer need to consider this edge case. MC still does need to special case this, to print/parse as a 32-bit register. This also still ends up net less work than introducing even aligned 32-bit register classes. This also should be applied to the image special case.
68 lines
4.7 KiB
YAML
68 lines
4.7 KiB
YAML
# RUN: not --crash llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx90a -run-pass=machineverifier -filetype=null %s 2>&1 | FileCheck -check-prefix=GFX90A-ERR %s
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# RUN: not --crash llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx90a --passes='machine-function(verify)' -filetype=null %s 2>&1 | FileCheck -check-prefix=GFX90A-ERR %s
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers for DS_GWS instructions ***
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# GFX90A-ERR: DS_GWS_INIT killed %0.sub1:areg_128_align2, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers for DS_GWS instructions ***
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# GFX90A-ERR: DS_GWS_INIT killed %0.sub3:areg_128_align2, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers for DS_GWS instructions ***
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# GFX90A-ERR: DS_GWS_SEMA_BR killed %1.sub1:vreg_64_align2, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers for DS_GWS instructions ***
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# GFX90A-ERR: DS_GWS_BARRIER killed %2.sub0:vreg_64, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers for DS_GWS instructions ***
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# GFX90A-ERR: DS_GWS_INIT killed %3:vgpr_32, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Illegal physical register for instruction ***
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# GFX90A-ERR: DS_GWS_INIT $vgpr1, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Illegal physical register for instruction ***
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# GFX90A-ERR: DS_GWS_INIT $agpr1, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers ***
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# GFX90A-ERR: DS_GWS_INIT %4:vreg_64, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Illegal virtual register for instruction ***
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# GFX90A-ERR: DS_GWS_INIT %4:vreg_64, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers ***
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# GFX90A-ERR: DS_GWS_INIT %5:areg_64, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Illegal virtual register for instruction ***
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# GFX90A-ERR: DS_GWS_INIT %5:areg_64, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Subtarget requires even aligned vector registers ***
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# GFX90A-ERR: DS_GWS_INIT %6:av_64, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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# GFX90A-ERR: *** Bad machine code: Illegal virtual register for instruction ***
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# GFX90A-ERR: DS_GWS_INIT %6:av_64, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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---
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name: gws_odd_vgpr
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body: |
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bb.0:
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%0:areg_128_align2 = IMPLICIT_DEF
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DS_GWS_INIT killed %0.sub1, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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%0:areg_128_align2 = IMPLICIT_DEF
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DS_GWS_INIT killed %0.sub3, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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%1:vreg_64_align2 = IMPLICIT_DEF
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DS_GWS_SEMA_BR killed %1.sub1, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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%2:vreg_64 = IMPLICIT_DEF
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DS_GWS_BARRIER killed %2.sub0, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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%3:vgpr_32 = IMPLICIT_DEF
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DS_GWS_INIT killed %3, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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$vgpr1 = IMPLICIT_DEF
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DS_GWS_INIT $vgpr1, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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$agpr1 = IMPLICIT_DEF
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DS_GWS_INIT $agpr1, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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$vgpr3_vgpr4 = IMPLICIT_DEF
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DS_GWS_INIT $vgpr1_vgpr2, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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$agpr3_agpr4 = IMPLICIT_DEF
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DS_GWS_INIT $agpr3_agpr4, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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%4:vreg_64 = IMPLICIT_DEF
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DS_GWS_INIT %4, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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%5:areg_64 = IMPLICIT_DEF
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DS_GWS_INIT %5, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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%6:av_64 = IMPLICIT_DEF
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DS_GWS_INIT %6, 0, implicit $m0, implicit $exec :: (store (s32) into custom "GWSResource")
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S_ENDPGM 0
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...
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