1 # RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -stress-regalloc=3 -start-before=greedy -stop-after=stack-slot-coloring -o - %s | FileCheck -check-prefixes=SHARE,GCN %s
2 # RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -stress-regalloc=3 -start-before=greedy -stop-after=stack-slot-coloring -no-stack-slot-sharing -o - %s | FileCheck -check-prefixes=NOSHARE,GCN %s
4 # Make sure that stack slot coloring doesn't try to merge frame
5 # indexes used for SGPR spilling with those that aren't.
6 # Even when stack slot sharing was disabled, it was still moving the
7 # FI ID used for an SGPR spill to a normal frame index.
11 define void @sgpr_spill_wrong_stack_id(float addrspace(1)* nocapture readnone %arg, float addrspace(1)* noalias %arg1) {
13 %tmp = load i32, i32 addrspace(1)* null, align 4
14 call void @func(i32 undef)
15 call void @func(i32 %tmp)
19 declare void @func(i32)
24 # GCN-LABEL: name: sgpr_spill_wrong_stack_id
26 # SHARE: - { id: 0, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4,
27 # SHARE: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
28 # SHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
29 # SHARE: - { id: 1, name: '', type: spill-slot, offset: 0, size: 8, alignment: 4,
30 # SHARE: stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
31 # SHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
32 # SHARE: - { id: 2, name: '', type: spill-slot, offset: 0, size: 4, 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: '' }
36 # SHARE: SI_SPILL_S32_SAVE $sgpr32, %stack.2, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (store 4 into %stack.2, addrspace 5)
37 # SHARE: SI_SPILL_V32_SAVE killed $vgpr0, %stack.0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, implicit $exec :: (store 4 into %stack.0, addrspace 5)
38 # SHARE: SI_SPILL_S64_SAVE killed renamable $sgpr6_sgpr7, %stack.1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (store 8 into %stack.1, align 4, addrspace 5)
39 # SHARE: renamable $sgpr6_sgpr7 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 8 from %stack.1, align 4, addrspace 5)
40 # SHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr6_sgpr7, @func, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit undef $vgpr0
41 # SHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.2, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 4 from %stack.2, addrspace 5)
42 # SHARE: $vgpr0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, implicit $exec :: (load 4 from %stack.0, addrspace 5)
43 # SHARE: renamable $sgpr6_sgpr7 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 8 from %stack.1, align 4, addrspace 5)
44 # SHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr6_sgpr7, @func, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit $vgpr0
45 # SHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.2, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 4 from %stack.2, addrspace 5)
48 # NOSHARE: - { id: 0, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4,
49 # NOSHARE: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
50 # NOSHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
51 # NOSHARE: - { id: 1, name: '', type: spill-slot, offset: 0, size: 8, alignment: 4,
52 # NOSHARE: stack-id: sgpr-spill, callee-saved-register: '', callee-saved-restored: true,
53 # NOSHARE: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
54 # NOSHARE: - { id: 2, name: '', type: spill-slot, offset: 0, size: 4, 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: 3, 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: '' }
61 # NOSHARE: SI_SPILL_S32_SAVE $sgpr32, %stack.2, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (store 4 into %stack.2, addrspace 5)
62 # NOSHARE: SI_SPILL_V32_SAVE killed $vgpr0, %stack.0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, implicit $exec :: (store 4 into %stack.0, addrspace 5)
63 # NOSHARE: SI_SPILL_S64_SAVE killed renamable $sgpr6_sgpr7, %stack.1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (store 8 into %stack.1, align 4, addrspace 5)
64 # NOSHARE: renamable $sgpr6_sgpr7 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 8 from %stack.1, align 4, addrspace 5)
65 # NOSHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr6_sgpr7, @func, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit undef $vgpr0
66 # NOSHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.2, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 4 from %stack.2, addrspace 5)
67 # NOSHARE: SI_SPILL_S32_SAVE $sgpr32, %stack.3, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (store 4 into %stack.3, addrspace 5)
68 # NOSHARE: $vgpr0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, implicit $exec :: (load 4 from %stack.0, addrspace 5)
69 # NOSHARE: renamable $sgpr6_sgpr7 = SI_SPILL_S64_RESTORE %stack.1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 8 from %stack.1, align 4, addrspace 5)
70 # NOSHARE: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr6_sgpr7, @func, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit $vgpr0
71 # NOSHARE: $sgpr32 = SI_SPILL_S32_RESTORE %stack.3, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr32 :: (load 4 from %stack.3, addrspace 5)
75 name: sgpr_spill_wrong_stack_id
76 tracksRegLiveness: true
80 scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
81 scratchWaveOffsetReg: $sgpr4
82 frameOffsetReg: $sgpr32
83 stackPtrOffsetReg: $sgpr32
86 %0:sreg_32_xm0 = COPY $sgpr32
87 %1:vreg_64 = IMPLICIT_DEF
88 %2:vgpr_32 = FLAT_LOAD_DWORD %1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
89 %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
90 ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
91 dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit undef $vgpr0
93 %4:sreg_32_xm0 = COPY $sgpr32
94 ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
95 ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32
97 dead $sgpr30_sgpr31 = SI_CALL %3, @func, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit killed $vgpr0
99 ADJCALLSTACKDOWN 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr32