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b931375195
Planning to add support for named vregs. This puts is in a conundrum since physregs are named as well. To rectify this we need to use a sigil other than '%' for physregs in MIR. We've settled on using '$' for physregs but first we must repurpose it from external symbols using it, which is what this commit is all about. We think '&' will have familiar semantics for C/C++ users. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322146 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
822 B
YAML
25 lines
822 B
YAML
# RUN: llc -mcpu=gfx900 -march=amdgcn -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck %s
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# If an INLINEASM statement is preceded by a vmem store of more than 8 bytes *and*
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# the INLINEASM defs the vregs holding the data-to-be-stored by that preceding store,
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# then the hazard recognizer should insert a s_nop in between them.
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...
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# GCN-LABEL: name: hazard-inlineasm
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# CHECK: FLAT_STORE_DWORDX4
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# CHECK-NEXT: S_NOP 0
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# CHECK-NEXT: INLINEASM
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---
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name: hazard-inlineasm
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body: |
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bb.0:
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FLAT_STORE_DWORDX4 %vgpr49_vgpr50, %vgpr26_vgpr27_vgpr28_vgpr29, 0, 0, 0, implicit %exec, implicit %flat_scr
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INLINEASM &"v_mad_u64_u32 $0, $1, $2, $3, $4", 0, 2621450, def %vgpr26_vgpr27, 2818058, def dead %sgpr14_sgpr15, 589833, %sgpr12, 327689, killed %vgpr51, 2621449, %vgpr46_vgpr47
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S_ENDPGM
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...
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