1 # RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -stress-regalloc=3 -run-pass=greedy,virtregrewriter,stack-slot-coloring -o - %s | FileCheck -check-prefixes=SHARE,GCN %s
2 # RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -stress-regalloc=3 -run-pass=greedy,virtregrewriter,stack-slot-coloring -no-stack-slot-sharing -o - %s | FileCheck -check-prefixes=NOSHARE,GCN %s
4 # -run-pass is used to artifically avoid using split register allocation, which would avoid stressing StackSlotColoring.
7 # Make sure that stack slot coloring doesn't try to merge frame
8 # indexes used for SGPR spilling with those that aren't.
9 # Even when stack slot sharing was disabled, it was still moving the
10 # FI ID used for an SGPR spill to a normal frame index.
14 define void @sgpr_spill_wrong_stack_id(ptr addrspace(1) nocapture readnone %arg, ptr addrspace(1) noalias %arg1) {
16 %tmp = load i32, ptr addrspace(1) null, align 4
17 call void @func(i32 undef)
18 call void @func(i32 %tmp)
22 declare void @func(i32)
27 # GCN-LABEL: name: sgpr_spill_wrong_stack_id
29 # SHARE: - { id: 0, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4,
30 # SHARE: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
31 # SHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
32 # SHARE: - { id: 1, name: '', type: spill-slot, offset: 0, size: 8, alignment: 4,
33 # SHARE: stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
34 # SHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
35 # SHARE: - { id: 2, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4,
36 # SHARE: stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
37 # SHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
39 # SHARE: SI_SPILL_S32_SAVE $sgpr32, %stack.2, implicit $exec, implicit $sgpr32 :: (store (s32) into %stack.2, addrspace 5)
40 # SHARE: SI_SPILL_V32_SAVE killed $vgpr0, %stack.0, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.0, addrspace 5)
41 # SHARE: SI_SPILL_S64_SAVE killed renamable $sgpr4_sgpr5, %stack.1, implicit $exec, implicit $sgpr32 :: (store (s64) into %stack.1, align 4, addrspace 5)
42 # SHARE: renamable $sgpr4_sgpr5 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr32 :: (load (s64) from %stack.1, align 4, addrspace 5)
43 # SHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit undef $vgpr0
44 # SHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.2, implicit $exec, implicit $sgpr32 :: (load (s32) from %stack.2, addrspace 5)
45 # SHARE: $vgpr0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
46 # SHARE: renamable $sgpr4_sgpr5 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr32 :: (load (s64) from %stack.1, align 4, addrspace 5)
47 # SHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit $vgpr0
48 # SHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.2, implicit $exec, implicit $sgpr32 :: (load (s32) from %stack.2, addrspace 5)
51 # NOSHARE: - { id: 0, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4,
52 # NOSHARE: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
53 # NOSHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
54 # NOSHARE: - { id: 1, name: '', type: spill-slot, offset: 0, size: 8, alignment: 4,
55 # NOSHARE: stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
56 # NOSHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
57 # NOSHARE: - { id: 2, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4,
58 # NOSHARE: stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
59 # NOSHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
60 # NOSHARE: - { id: 3, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4,
61 # NOSHARE: stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
62 # NOSHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
64 # NOSHARE: SI_SPILL_S32_SAVE $sgpr32, %stack.2, implicit $exec, implicit $sgpr32 :: (store (s32) into %stack.2, addrspace 5)
65 # NOSHARE: SI_SPILL_V32_SAVE killed $vgpr0, %stack.0, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.0, addrspace 5)
66 # NOSHARE: SI_SPILL_S64_SAVE killed renamable $sgpr4_sgpr5, %stack.1, implicit $exec, implicit $sgpr32 :: (store (s64) into %stack.1, align 4, addrspace 5)
67 # NOSHARE: renamable $sgpr4_sgpr5 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr32 :: (load (s64) from %stack.1, align 4, addrspace 5)
68 # NOSHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit undef $vgpr0
69 # NOSHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.2, implicit $exec, implicit $sgpr32 :: (load (s32) from %stack.2, addrspace 5)
70 # NOSHARE: SI_SPILL_S32_SAVE $sgpr32, %stack.3, implicit $exec, implicit $sgpr32 :: (store (s32) into %stack.3, addrspace 5)
71 # NOSHARE: $vgpr0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
72 # NOSHARE: renamable $sgpr4_sgpr5 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr32 :: (load (s64) from %stack.1, align 4, addrspace 5)
73 # NOSHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit $vgpr0
74 # NOSHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.3, implicit $exec, implicit $sgpr32 :: (load (s32) from %stack.3, addrspace 5)
78 name: sgpr_spill_wrong_stack_id
79 tracksRegLiveness: true
83 scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
84 frameOffsetReg: $sgpr32
85 stackPtrOffsetReg: $sgpr32
88 %0:sreg_32_xm0 = COPY $sgpr32
89 %1:vreg_64 = IMPLICIT_DEF
90 %2:vgpr_32 = FLAT_LOAD_DWORD %1, 0, 0, implicit $exec, implicit $flat_scr
91 %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
92 ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
93 dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit undef $vgpr0
95 %4:sreg_32_xm0 = COPY $sgpr32
96 ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
97 ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
99 dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu, implicit killed $vgpr0
101 ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32