[llvm] [AMDGPU][LIT] Added a MIR LIT showing the SGPR spills (PR #94584)
via llvm-commits
llvm-commits at lists.llvm.org
Thu Jun 6 00:16:03 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-amdgpu
Author: Vikash Gupta (vg0204)
<details>
<summary>Changes</summary>
This MIR test case is added to seek the consumption of VGPR lanes being used for SGPR spills during si-lower-sgpr-spills pass of AMDGPU pass pipeline. Basically, in this pass, stack slots are mapped to available VGPR lanes for spilling purpose, thus ending the need for stack slots.
In current scenarion, each new SGPR spill goes into new VGPR lanes as, being mapped from its distinct stack slots assigned during SGPR allocation pass. It can be clearly seen in the added test case.
---
Full diff: https://github.com/llvm/llvm-project/pull/94584.diff
1 Files Affected:
- (added) llvm/test/CodeGen/AMDGPU/si-lower-sgpr-spills-vgpr-lanes-usage.mir (+231)
``````````diff
diff --git a/llvm/test/CodeGen/AMDGPU/si-lower-sgpr-spills-vgpr-lanes-usage.mir b/llvm/test/CodeGen/AMDGPU/si-lower-sgpr-spills-vgpr-lanes-usage.mir
new file mode 100644
index 00000000000000..a97d965d7e5ba0
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/si-lower-sgpr-spills-vgpr-lanes-usage.mir
@@ -0,0 +1,231 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -verify-machineinstrs -stress-regalloc=3 -start-before=greedy -stop-after=si-lower-sgpr-spills -o - %s | FileCheck -check-prefix=SGPR_SPILLED %s
+
+# This file contains 3 test cases to observe the optimal stack slot usage for SGPR spills utilizing Stack Slot Coloring pass.
+# @stack-slot-share-equal-sized-spills : In this, the stack slot indices is shared among the spill stack objects of equal size.
+# @stack-slot-share-unequal-sized-spills-with-large-spill-first AND
+# @stack-slot-share-unequal-sized-spills-with-small-spill-first :
+# In the remaining 2 test cases mentioned in just above 2 lines, the stack slot indices is shared among the spill stack objects of
+# unequal size, with spill slot having the size of the largest of the stack objects sharing the common stack indices.
+
+--- |
+ define void @stack-slot-share-equal-sized-spills(ptr addrspace(1) nocapture readnone %arg, ptr addrspace(1) noalias %arg1) {
+ bb:
+ %tmp = load i32, ptr addrspace(1) null, align 4
+ call void @func(i32 undef)
+ call void @func(i32 %tmp)
+ unreachable
+ }
+
+ define void @stack-slot-share-unequal-sized-spills-with-large-spill-first(ptr addrspace(1) nocapture readnone %arg, ptr addrspace(1) noalias %arg1) {
+ bb:
+ %tmp = load i32, ptr addrspace(1) null, align 4
+ call void @func(i32 undef)
+ call void @func(i32 %tmp)
+ unreachable
+ }
+
+ define void @stack-slot-share-unequal-sized-spills-with-small-spill-first(ptr addrspace(1) nocapture readnone %arg, ptr addrspace(1) noalias %arg1) {
+ bb:
+ %tmp = load i32, ptr addrspace(1) null, align 4
+ call void @func(i32 undef)
+ call void @func(i32 %tmp)
+ unreachable
+ }
+
+ declare void @func(i32)
+...
+
+---
+name: stack-slot-share-equal-sized-spills
+tracksRegLiveness: true
+frameInfo:
+ adjustsStack: true
+ hasCalls: true
+machineFunctionInfo:
+ scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
+ frameOffsetReg: $sgpr32
+ stackPtrOffsetReg: $sgpr32
+body: |
+ bb.0:
+ ; SGPR_SPILLED-LABEL: name: stack-slot-share-equal-sized-spills
+ ; SGPR_SPILLED: liveins: $sgpr30, $sgpr31, $vgpr62
+ ; SGPR_SPILLED-NEXT: {{ $}}
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
+ ; SGPR_SPILLED-NEXT: $vgpr62 = SI_SPILL_S32_TO_VGPR killed $sgpr30, 0, $vgpr62
+ ; SGPR_SPILLED-NEXT: $vgpr62 = SI_SPILL_S32_TO_VGPR killed $sgpr31, 1, $vgpr62
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr32, 0, [[DEF]]
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr0, 1, [[DEF]], implicit-def $sgpr0_sgpr1, implicit $sgpr0_sgpr1
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr1, 2, [[DEF]], implicit $sgpr0_sgpr1
+ ; SGPR_SPILLED-NEXT: [[DEF1:%[0-9]+]]:vreg_64 = IMPLICIT_DEF
+ ; SGPR_SPILLED-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF1]], 0, 0, implicit $exec, implicit $flat_scr
+ ; SGPR_SPILLED-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @func + 4, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def dead $scc
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr4, 3, [[DEF]], implicit-def $sgpr4_sgpr5, implicit $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR killed $sgpr5, 4, [[DEF]], implicit killed $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: $sgpr4 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 3, implicit-def $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: $sgpr5 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 4
+ ; SGPR_SPILLED-NEXT: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit undef $vgpr0
+ ; SGPR_SPILLED-NEXT: $sgpr32 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 0
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr32, 5, [[DEF]]
+ ; SGPR_SPILLED-NEXT: $sgpr0 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 1, implicit-def $sgpr0_sgpr1
+ ; SGPR_SPILLED-NEXT: $sgpr1 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 2
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr2, 6, [[DEF]], implicit-def $sgpr2_sgpr3, implicit $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr3, 7, [[DEF]], implicit $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: $vgpr0 = COPY [[FLAT_LOAD_DWORD]]
+ ; SGPR_SPILLED-NEXT: $sgpr4 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 3, implicit-def $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: $sgpr5 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 4
+ ; SGPR_SPILLED-NEXT: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit killed $vgpr0
+ ; SGPR_SPILLED-NEXT: $sgpr32 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 5
+ ; SGPR_SPILLED-NEXT: $sgpr2 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 6, implicit-def $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: $sgpr3 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 7
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ %0:sreg_32_xm0 = COPY $sgpr32
+ %5:sreg_64 = COPY $sgpr0_sgpr1
+ %1:vreg_64 = IMPLICIT_DEF
+ %2:vgpr_32 = FLAT_LOAD_DWORD %1, 0, 0, implicit $exec, implicit $flat_scr
+ %3:sreg_64 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @func + 4, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def dead $scc
+ ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit undef $vgpr0
+ $sgpr32 = COPY %0
+ %4:sreg_32_xm0 = COPY $sgpr32
+ $sgpr0_sgpr1 = COPY %5
+ %6:sreg_64 = COPY $sgpr2_sgpr3
+ ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ $vgpr0 = COPY %2
+ dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit killed $vgpr0
+ $sgpr32 = COPY %4
+ $sgpr2_sgpr3 = COPY %6
+ ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+...
+
+---
+name: stack-slot-share-unequal-sized-spills-with-large-spill-first
+tracksRegLiveness: true
+frameInfo:
+ adjustsStack: true
+ hasCalls: true
+machineFunctionInfo:
+ scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
+ frameOffsetReg: $sgpr32
+ stackPtrOffsetReg: $sgpr32
+body: |
+ bb.0:
+ ; SGPR_SPILLED-LABEL: name: stack-slot-share-unequal-sized-spills-with-large-spill-first
+ ; SGPR_SPILLED: liveins: $sgpr30, $sgpr31, $vgpr62
+ ; SGPR_SPILLED-NEXT: {{ $}}
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
+ ; SGPR_SPILLED-NEXT: $vgpr62 = SI_SPILL_S32_TO_VGPR killed $sgpr30, 0, $vgpr62
+ ; SGPR_SPILLED-NEXT: $vgpr62 = SI_SPILL_S32_TO_VGPR killed $sgpr31, 1, $vgpr62
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr32, 0, [[DEF]]
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr2, 1, [[DEF]], implicit-def $sgpr2_sgpr3, implicit $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr3, 2, [[DEF]], implicit $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: [[DEF1:%[0-9]+]]:vreg_64 = IMPLICIT_DEF
+ ; SGPR_SPILLED-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF1]], 0, 0, implicit $exec, implicit $flat_scr
+ ; SGPR_SPILLED-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @func + 4, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def dead $scc
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr4, 3, [[DEF]], implicit-def $sgpr4_sgpr5, implicit $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR killed $sgpr5, 4, [[DEF]], implicit killed $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: $sgpr4 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 3, implicit-def $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: $sgpr5 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 4
+ ; SGPR_SPILLED-NEXT: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit undef $vgpr0
+ ; SGPR_SPILLED-NEXT: $sgpr32 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 0
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr32, 5, [[DEF]]
+ ; SGPR_SPILLED-NEXT: $sgpr2 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 1, implicit-def $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: $sgpr3 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 2
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr2, 6, [[DEF]]
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: $vgpr0 = COPY [[FLAT_LOAD_DWORD]]
+ ; SGPR_SPILLED-NEXT: $sgpr4 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 3, implicit-def $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: $sgpr5 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 4
+ ; SGPR_SPILLED-NEXT: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit killed $vgpr0
+ ; SGPR_SPILLED-NEXT: $sgpr32 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 5
+ ; SGPR_SPILLED-NEXT: $sgpr2 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 6
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ %0:sreg_32_xm0 = COPY $sgpr32
+ %5:sreg_64 = COPY $sgpr2_sgpr3
+ %1:vreg_64 = IMPLICIT_DEF
+ %2:vgpr_32 = FLAT_LOAD_DWORD %1, 0, 0, implicit $exec, implicit $flat_scr
+ %3:sreg_64 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @func + 4, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def dead $scc
+ ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit undef $vgpr0
+ $sgpr32 = COPY %0
+ %4:sreg_32_xm0 = COPY $sgpr32
+ $sgpr2_sgpr3 = COPY %5
+ %6:sreg_32 = COPY $sgpr2
+ ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ $vgpr0 = COPY %2
+ dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit killed $vgpr0
+ $sgpr32 = COPY %4
+ $sgpr2 = COPY %6
+ ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+...
+
+---
+name: stack-slot-share-unequal-sized-spills-with-small-spill-first
+tracksRegLiveness: true
+frameInfo:
+ adjustsStack: true
+ hasCalls: true
+machineFunctionInfo:
+ scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
+ frameOffsetReg: $sgpr32
+ stackPtrOffsetReg: $sgpr32
+body: |
+ bb.0:
+ ; SGPR_SPILLED-LABEL: name: stack-slot-share-unequal-sized-spills-with-small-spill-first
+ ; SGPR_SPILLED: liveins: $sgpr30, $sgpr31, $vgpr62
+ ; SGPR_SPILLED-NEXT: {{ $}}
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
+ ; SGPR_SPILLED-NEXT: $vgpr62 = SI_SPILL_S32_TO_VGPR killed $sgpr30, 0, $vgpr62
+ ; SGPR_SPILLED-NEXT: $vgpr62 = SI_SPILL_S32_TO_VGPR killed $sgpr31, 1, $vgpr62
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr32, 0, [[DEF]]
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr0, 1, [[DEF]]
+ ; SGPR_SPILLED-NEXT: [[DEF1:%[0-9]+]]:vreg_64 = IMPLICIT_DEF
+ ; SGPR_SPILLED-NEXT: [[FLAT_LOAD_DWORD:%[0-9]+]]:vgpr_32 = FLAT_LOAD_DWORD [[DEF1]], 0, 0, implicit $exec, implicit $flat_scr
+ ; SGPR_SPILLED-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @func + 4, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def dead $scc
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr4, 2, [[DEF]], implicit-def $sgpr4_sgpr5, implicit $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR killed $sgpr5, 3, [[DEF]], implicit killed $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: $sgpr4 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 2, implicit-def $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: $sgpr5 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 3
+ ; SGPR_SPILLED-NEXT: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit undef $vgpr0
+ ; SGPR_SPILLED-NEXT: $sgpr32 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 0
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr32, 4, [[DEF]]
+ ; SGPR_SPILLED-NEXT: $sgpr0 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 1
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr2, 5, [[DEF]], implicit-def $sgpr2_sgpr3, implicit $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR $sgpr3, 6, [[DEF]], implicit $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ; SGPR_SPILLED-NEXT: $vgpr0 = COPY [[FLAT_LOAD_DWORD]]
+ ; SGPR_SPILLED-NEXT: $sgpr4 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 2, implicit-def $sgpr4_sgpr5
+ ; SGPR_SPILLED-NEXT: $sgpr5 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 3
+ ; SGPR_SPILLED-NEXT: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit killed $vgpr0
+ ; SGPR_SPILLED-NEXT: $sgpr32 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 4
+ ; SGPR_SPILLED-NEXT: $sgpr2 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 5, implicit-def $sgpr2_sgpr3
+ ; SGPR_SPILLED-NEXT: $sgpr3 = SI_RESTORE_S32_FROM_VGPR [[DEF]], 6
+ ; SGPR_SPILLED-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ %0:sreg_32_xm0 = COPY $sgpr32
+ %5:sreg_32 = COPY $sgpr0
+ %1:vreg_64 = IMPLICIT_DEF
+ %2:vgpr_32 = FLAT_LOAD_DWORD %1, 0, 0, implicit $exec, implicit $flat_scr
+ %3:sreg_64 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @func + 4, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def dead $scc
+ ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit undef $vgpr0
+ $sgpr32 = COPY %0
+ %4:sreg_32_xm0 = COPY $sgpr32
+ $sgpr0 = COPY %5
+ %6:sreg_64 = COPY $sgpr2_sgpr3
+ ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+ $vgpr0 = COPY %2
+ dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit killed $vgpr0
+ $sgpr32 = COPY %4
+ $sgpr2_sgpr3 = COPY %6
+ ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
+...
``````````
</details>
https://github.com/llvm/llvm-project/pull/94584
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