[llvm] [AMDGPU] Presubmit test: max register pressure on defs. (PR #74424)
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Mon Dec 4 23:15:51 PST 2023
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-amdgpu
Author: Valery Pykhtin (vpykhtin)
<details>
<summary>Changes</summary>
Upcoming patch https://github.com/llvm/llvm-project/pull/74422.
---
Full diff: https://github.com/llvm/llvm-project/pull/74424.diff
1 Files Affected:
- (modified) llvm/test/CodeGen/AMDGPU/regpressure_printer.mir (+113-2)
``````````diff
diff --git a/llvm/test/CodeGen/AMDGPU/regpressure_printer.mir b/llvm/test/CodeGen/AMDGPU/regpressure_printer.mir
index a1722c42b189f..83e85ccf7f8f1 100644
--- a/llvm/test/CodeGen/AMDGPU/regpressure_printer.mir
+++ b/llvm/test/CodeGen/AMDGPU/regpressure_printer.mir
@@ -1,6 +1,6 @@
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3
-# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 --filetype=null --run-pass=amdgpu-print-rp %s 2>&1 >/dev/null | FileCheck %s --check-prefix=RP --check-prefix=RPU
-# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 --filetype=null --run-pass=amdgpu-print-rp -amdgpu-print-rp-downward %s 2>&1 >/dev/null | FileCheck %s --check-prefix=RP --check-prefix=RPD
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 --filetype=null -verify-machineinstrs --run-pass=amdgpu-print-rp %s 2>&1 >/dev/null | FileCheck %s --check-prefix=RP --check-prefix=RPU
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 --filetype=null -verify-machineinstrs --run-pass=amdgpu-print-rp -amdgpu-print-rp-downward %s 2>&1 >/dev/null | FileCheck %s --check-prefix=RP --check-prefix=RPD
---
@@ -666,3 +666,114 @@ body: |
EXP_DONE 0, %49:vgpr_32, undef %51:vgpr_32, undef %53:vgpr_32, undef %55:vgpr_32, -1, 0, 1, implicit $exec
S_ENDPGM 0
...
+---
+name: test_partially_used_def
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPU-LABEL: name: test_partially_used_def
+ ; RPU: Live-in:
+ ; RPU-NEXT: SGPR VGPR
+ ; RPU-NEXT: 0 0
+ ; RPU-NEXT: 4 0 %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPU-NEXT: 4 0
+ ; RPU-NEXT: 4 0 %1:sgpr_128 = COPY %0:sgpr_128
+ ; RPU-NEXT: 1 0
+ ; RPU-NEXT: 1 0 S_NOP 0, implicit %1.sub1:sgpr_128
+ ; RPU-NEXT: 0 0
+ ; RPU-NEXT: Live-out:
+ ; RPU-NEXT: Live-thr:
+ ; RPU-NEXT: 0 0
+ ;
+ ; RPD-LABEL: name: test_partially_used_def
+ ; RPD: Live-in:
+ ; RPD-NEXT: SGPR VGPR
+ ; RPD-NEXT: 0 0
+ ; RPD-NEXT: 4 0 %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPD-NEXT: 4 0
+ ; RPD-NEXT: 8 0 %1:sgpr_128 = COPY %0:sgpr_128
+ ; RPD-NEXT: 1 0
+ ; RPD-NEXT: 1 0 S_NOP 0, implicit %1.sub1:sgpr_128
+ ; RPD-NEXT: 0 0
+ ; RPD-NEXT: Live-out:
+ ; RPD-NEXT: Live-thr:
+ ; RPD-NEXT: 0 0
+ %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ %1:sgpr_128 = COPY %0:sgpr_128
+ S_NOP 0, implicit %1.sub1
+...
+---
+name: test_partially_used_early_clobber_def
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPU-LABEL: name: test_partially_used_early_clobber_def
+ ; RPU: Live-in:
+ ; RPU-NEXT: SGPR VGPR
+ ; RPU-NEXT: 0 0
+ ; RPU-NEXT: 4 0 %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPU-NEXT: 4 0
+ ; RPU-NEXT: 5 0 early-clobber %1:sgpr_128 = COPY %0:sgpr_128
+ ; RPU-NEXT: 1 0
+ ; RPU-NEXT: 1 0 S_NOP 0, implicit %1.sub1:sgpr_128
+ ; RPU-NEXT: 0 0
+ ; RPU-NEXT: Live-out:
+ ; RPU-NEXT: Live-thr:
+ ; RPU-NEXT: 0 0
+ ;
+ ; RPD-LABEL: name: test_partially_used_early_clobber_def
+ ; RPD: Live-in:
+ ; RPD-NEXT: SGPR VGPR
+ ; RPD-NEXT: 0 0
+ ; RPD-NEXT: 4 0 %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPD-NEXT: 4 0
+ ; RPD-NEXT: 8 0 early-clobber %1:sgpr_128 = COPY %0:sgpr_128
+ ; RPD-NEXT: 1 0
+ ; RPD-NEXT: 1 0 S_NOP 0, implicit %1.sub1:sgpr_128
+ ; RPD-NEXT: 0 0
+ ; RPD-NEXT: Live-out:
+ ; RPD-NEXT: Live-thr:
+ ; RPD-NEXT: 0 0
+ %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ early-clobber %1:sgpr_128 = COPY %0:sgpr_128
+ S_NOP 0, implicit %1.sub1
+...
+---
+name: test_partially_used_def_and_early_clobber_def
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPU-LABEL: name: test_partially_used_def_and_early_clobber_def
+ ; RPU: Live-in:
+ ; RPU-NEXT: SGPR VGPR
+ ; RPU-NEXT: 0 0
+ ; RPU-NEXT: 4 0 %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPU-NEXT: 4 0
+ ; RPU-NEXT: 7 0 %1:sgpr_128 = COPY %0:sgpr_128, implicit-def %2:sgpr_128, implicit-def early-clobber %3:sgpr_128, implicit-def dead early-clobber %4:sgpr_128
+ ; RPU-NEXT: 6 0
+ ; RPU-NEXT: 6 0 S_NOP 0, implicit %1.sub1:sgpr_128, implicit %2.sub0_sub1:sgpr_128, implicit %3.sub0_sub1_sub2:sgpr_128
+ ; RPU-NEXT: 0 0
+ ; RPU-NEXT: Live-out:
+ ; RPU-NEXT: Live-thr:
+ ; RPU-NEXT: 0 0
+ ;
+ ; RPD-LABEL: name: test_partially_used_def_and_early_clobber_def
+ ; RPD: Live-in:
+ ; RPD-NEXT: SGPR VGPR
+ ; RPD-NEXT: 0 0
+ ; RPD-NEXT: 4 0 %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ ; RPD-NEXT: 4 0
+ ; RPD-NEXT: 20 0 %1:sgpr_128 = COPY %0:sgpr_128, implicit-def %2:sgpr_128, implicit-def early-clobber %3:sgpr_128, implicit-def dead early-clobber %4:sgpr_128
+ ; RPD-NEXT: 6 0
+ ; RPD-NEXT: 6 0 S_NOP 0, implicit %1.sub1:sgpr_128, implicit %2.sub0_sub1:sgpr_128, implicit %3.sub0_sub1_sub2:sgpr_128
+ ; RPD-NEXT: 0 0
+ ; RPD-NEXT: Live-out:
+ ; RPD-NEXT: Live-thr:
+ ; RPD-NEXT: 0 0
+ %0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
+ %1:sgpr_128 = COPY %0:sgpr_128, implicit-def %2:sgpr_128, implicit-def early-clobber %3:sgpr_128, implicit-def early-clobber %4:sgpr_128
+ S_NOP 0, implicit %1.sub1, implicit %2.sub0_sub1, implicit %3.sub0_sub1_sub2
+...
``````````
</details>
https://github.com/llvm/llvm-project/pull/74424
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