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| author | Mark Searles <m.c.searles@gmail.com> | 2017-12-07 20:36:39 +0000 |
|---|---|---|
| committer | Mark Searles <m.c.searles@gmail.com> | 2017-12-07 20:36:39 +0000 |
| commit | a84d23489ad58d88d2689dcde577ece0f621fe1f (patch) | |
| tree | 04a3ab2c63c5e0256346552d8fcf0430b79b2bca /llvm/test/CodeGen | |
| parent | d29f24acfb31950bc1f01a7d6f42a77969e91a67 (diff) | |
| download | bcm5719-llvm-a84d23489ad58d88d2689dcde577ece0f621fe1f.tar.gz bcm5719-llvm-a84d23489ad58d88d2689dcde577ece0f621fe1f.zip | |
[AMDGPU] Add options for waitcnt pass debugging; add instr count in debug output.
-amdgpu-waitcnt-forcezero={1|0} Force all waitcnt instrs to be emitted as s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-amdgpu-waitcnt-forceexp=<n> Force emit a s_waitcnt expcnt(0) before the first <n> instrs
-amdgpu-waitcnt-forcelgkm=<n> Force emit a s_waitcnt lgkmcnt(0) before the first <n> instrs
-amdgpu-waitcnt-forcevm=<n> Force emit a s_waitcnt vmcnt(0) before the first <n> instrs
Differential Revision: https://reviews.llvm.org/D40091
llvm-svn: 320084
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/waitcnt-debug.mir | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/waitcnt-debug.mir b/llvm/test/CodeGen/AMDGPU/waitcnt-debug.mir new file mode 100644 index 00000000000..86430fc75e9 --- /dev/null +++ b/llvm/test/CodeGen/AMDGPU/waitcnt-debug.mir @@ -0,0 +1,41 @@ +# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -amdgpu-waitcnt-forcelgkm=1 -o - %s | FileCheck -check-prefixes=GCN,LGKM %s +# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -amdgpu-waitcnt-forceexp=2 -o - %s | FileCheck -check-prefixes=GCN,EXP %s +# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -amdgpu-waitcnt-forcevm=3 -o - %s | FileCheck -check-prefixes=GCN,VM %s +# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-insert-waitcnts -amdgpu-waitcnt-forcezero=1 -amdgpu-waitcnt-forcevm=2 -o - %s | FileCheck -check-prefixes=GCN,ZERO %s + +# check that the waitcnt pass options that force insertion of waitcnt instructions are working as expected + +... +# GCN-LABEL: name: waitcnt-debug +# LGKM: S_WAITCNT 127 +# LGKM-NEXT: S_NOP 0 +# LGKM-NEXT: S_NOP 0 + +# EXP: S_WAITCNT 3855 +# EXP-NEXT: S_NOP 0 +# EXP-NEXT: S_WAITCNT 3855 +# EXP-NEXT: S_NOP 0 + +# VM: S_WAITCNT 3952 +# VM-NEXT: S_NOP 0 +# VM-NEXT: S_WAITCNT 3952 +# VM-NEXT: S_NOP 0 +# VM-NEXT: S_WAITCNT 3952 +# VM-NEXT: S_NOP 0 + +# ZERO: S_WAITCNT 0 +# ZERO-NEXT: S_WAITCNT 0 +# ZERO-NEXT: S_NOP 0 +# ZERO-NEXT: S_WAITCNT 0 +# ZERO-NEXT: S_NOP 0 + +name: waitcnt-debug +liveins: +body: | + bb.0: + S_NOP 0 + S_NOP 0 + S_NOP 0 + S_NOP 0 +... + |
