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c35348c12e
- Add "amdgpu-waitcnt-forcezero" to force all waitcnt instrs to be emitted as s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0) - Add debug counters to control force emit of s_waitcnt instrs; debug counters: si-insert-waitcnts-forceexp: force emit s_waitcnt expcnt(0) instrs si-insert-waitcnts-forcevm: force emit s_waitcnt lgkmcnt(0) instrs si-insert-waitcnts-forcelgkm: force emit s_waitcnt vmcnt(0) instrs - Add some debug statements Note that a variant of this patch was previously committed/reverted. Differential Revision: https://reviews.llvm.org/D45888 llvm-svn: 330862
42 lines
1.4 KiB
YAML
42 lines
1.4 KiB
YAML
# REQUIRES: asserts
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# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -debug-counter=si-insert-waitcnts-forcelgkm-count=1 -o - %s | FileCheck -check-prefixes=GCN,LGKM %s
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# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -debug-counter=si-insert-waitcnts-forceexp-count=2 -o - %s | FileCheck -check-prefixes=GCN,EXP %s
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# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -debug-counter=si-insert-waitcnts-forcevm-count=3 -o - %s | FileCheck -check-prefixes=GCN,VM %s
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# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -amdgpu-waitcnt-forcezero=1 -debug-counter=si-insert-waitcnts-forcevm-count=2 -o - %s | FileCheck -check-prefixes=GCN,ZERO %s
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# check that the waitcnt pass options that force insertion of waitcnt instructions are working as expected
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...
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# GCN-LABEL: name: waitcnt-debug
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# LGKM: S_WAITCNT 127
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# LGKM-NEXT: S_NOP 0
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# LGKM-NEXT: S_NOP 0
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# EXP: S_WAITCNT 3855
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# EXP-NEXT: S_NOP 0
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# EXP-NEXT: S_WAITCNT 3855
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# EXP-NEXT: S_NOP 0
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# VM: S_WAITCNT 3952
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# VM-NEXT: S_NOP 0
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# VM-NEXT: S_WAITCNT 3952
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# VM-NEXT: S_NOP 0
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# VM-NEXT: S_WAITCNT 3952
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# VM-NEXT: S_NOP 0
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# ZERO: S_WAITCNT 0
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# ZERO-NEXT: S_WAITCNT 0
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# ZERO-NEXT: S_NOP 0
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# ZERO-NEXT: S_WAITCNT 0
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# ZERO-NEXT: S_NOP 0
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name: waitcnt-debug
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liveins:
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body: |
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bb.0:
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S_NOP 0
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S_NOP 0
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S_NOP 0
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S_NOP 0
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...
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