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[AMDGPU] precommit lit test for PR 69924.
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; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx906 -O0 -verify-machineinstrs --stop-after=regallocfast,1 -o - %s | FileCheck -check-prefix=REGALLOC %s
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; FIXME: There are two spill codes inserted wrongly in this test.
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; They are inserted during regalloc for the BBLiveIns - the spill restores for vgpr1 in the Flow block (bb.1) and for vgpr0 in the return block (bb.4).
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define i32 @prolog_spill(i32 %arg0, i32 %arg1, i32 %arg2) {
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; REGALLOC-LABEL: name: prolog_spill
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; REGALLOC: bb.0.bb.0:
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; REGALLOC-NEXT: successors: %bb.3(0x40000000), %bb.1(0x40000000)
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; REGALLOC-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: renamable $vgpr3 = IMPLICIT_DEF
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; REGALLOC-NEXT: SI_SPILL_V32_SAVE killed $vgpr2, %stack.5, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.5, addrspace 5)
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; REGALLOC-NEXT: SI_SPILL_V32_SAVE killed $vgpr1, %stack.4, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.4, addrspace 5)
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; REGALLOC-NEXT: renamable $vgpr1 = COPY killed $vgpr0
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; REGALLOC-NEXT: $vgpr0 = SI_SPILL_WWM_V32_RESTORE %stack.2, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.2, addrspace 5)
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; REGALLOC-NEXT: renamable $sgpr4 = S_MOV_B32 49
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; REGALLOC-NEXT: renamable $sgpr4_sgpr5 = V_CMP_GT_I32_e64 killed $vgpr1, killed $sgpr4, implicit $exec
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; REGALLOC-NEXT: renamable $sgpr6 = IMPLICIT_DEF
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; REGALLOC-NEXT: renamable $vgpr1 = COPY killed renamable $sgpr6
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; REGALLOC-NEXT: SI_SPILL_V32_SAVE killed $vgpr1, %stack.3, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.3, addrspace 5)
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; REGALLOC-NEXT: renamable $sgpr6_sgpr7 = COPY $exec, implicit-def $exec
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; REGALLOC-NEXT: renamable $sgpr4_sgpr5 = S_AND_B64 renamable $sgpr6_sgpr7, killed renamable $sgpr4_sgpr5, implicit-def dead $scc
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; REGALLOC-NEXT: renamable $sgpr6_sgpr7 = S_XOR_B64 renamable $sgpr4_sgpr5, killed renamable $sgpr6_sgpr7, implicit-def dead $scc
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; REGALLOC-NEXT: renamable $vgpr0 = V_WRITELANE_B32 killed $sgpr6, 0, $vgpr0, implicit-def $sgpr6_sgpr7, implicit $sgpr6_sgpr7
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; REGALLOC-NEXT: renamable $vgpr0 = V_WRITELANE_B32 killed $sgpr7, 1, $vgpr0, implicit killed $sgpr6_sgpr7
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; REGALLOC-NEXT: SI_SPILL_WWM_V32_SAVE killed $vgpr0, %stack.2, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.2, addrspace 5)
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; REGALLOC-NEXT: $exec = S_MOV_B64_term killed renamable $sgpr4_sgpr5
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; REGALLOC-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
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; REGALLOC-NEXT: S_BRANCH %bb.3
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: bb.1.Flow:
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; REGALLOC-NEXT: successors: %bb.2(0x40000000), %bb.4(0x40000000)
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: $vgpr0 = SI_SPILL_WWM_V32_RESTORE %stack.2, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.2, addrspace 5)
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; REGALLOC-NEXT: $vgpr1 = SI_SPILL_V32_RESTORE %stack.3, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.3, addrspace 5)
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; REGALLOC-NEXT: $sgpr4 = V_READLANE_B32 $vgpr0, 0, implicit-def $sgpr4_sgpr5
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; REGALLOC-NEXT: $sgpr5 = V_READLANE_B32 $vgpr0, 1
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; REGALLOC-NEXT: renamable $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 killed renamable $sgpr4_sgpr5, implicit-def $exec, implicit-def dead $scc, implicit $exec
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; REGALLOC-NEXT: SI_SPILL_V32_SAVE killed $vgpr1, %stack.6, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.6, addrspace 5)
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; REGALLOC-NEXT: renamable $sgpr4_sgpr5 = S_AND_B64 $exec, killed renamable $sgpr4_sgpr5, implicit-def dead $scc
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; REGALLOC-NEXT: renamable $vgpr0 = V_WRITELANE_B32 killed $sgpr4, 2, $vgpr0, implicit-def $sgpr4_sgpr5, implicit $sgpr4_sgpr5
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; REGALLOC-NEXT: renamable $vgpr0 = V_WRITELANE_B32 $sgpr5, 3, $vgpr0, implicit $sgpr4_sgpr5
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; REGALLOC-NEXT: SI_SPILL_WWM_V32_SAVE killed $vgpr0, %stack.2, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.2, addrspace 5)
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; REGALLOC-NEXT: $exec = S_XOR_B64_term $exec, killed renamable $sgpr4_sgpr5, implicit-def dead $scc
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; REGALLOC-NEXT: S_CBRANCH_EXECZ %bb.4, implicit $exec
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; REGALLOC-NEXT: S_BRANCH %bb.2
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: bb.2.bb.1:
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; REGALLOC-NEXT: successors: %bb.4(0x80000000)
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: $vgpr0 = SI_SPILL_V32_RESTORE %stack.4, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.4, addrspace 5)
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; REGALLOC-NEXT: renamable $sgpr4 = S_MOV_B32 10
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; REGALLOC-NEXT: renamable $vgpr0 = V_ADD_U32_e64 $vgpr0, killed $sgpr4, 0, implicit $exec
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; REGALLOC-NEXT: SI_SPILL_V32_SAVE killed $vgpr0, %stack.6, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.6, addrspace 5)
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; REGALLOC-NEXT: S_BRANCH %bb.4
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: bb.3.bb.2:
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; REGALLOC-NEXT: successors: %bb.1(0x80000000)
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: $vgpr0 = SI_SPILL_V32_RESTORE %stack.5, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.5, addrspace 5)
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; REGALLOC-NEXT: renamable $sgpr4 = S_MOV_B32 20
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; REGALLOC-NEXT: renamable $vgpr0 = V_ADD_U32_e64 $vgpr0, killed $sgpr4, 0, implicit $exec
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; REGALLOC-NEXT: SI_SPILL_V32_SAVE killed $vgpr0, %stack.3, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.3, addrspace 5)
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; REGALLOC-NEXT: S_BRANCH %bb.1
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; REGALLOC-NEXT: {{ $}}
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; REGALLOC-NEXT: bb.4.bb.3:
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; REGALLOC-NEXT: $vgpr1 = SI_SPILL_WWM_V32_RESTORE %stack.2, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.2, addrspace 5)
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; REGALLOC-NEXT: $vgpr0 = SI_SPILL_V32_RESTORE %stack.6, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.6, addrspace 5)
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; REGALLOC-NEXT: $sgpr4 = V_READLANE_B32 $vgpr1, 2, implicit-def $sgpr4_sgpr5
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; REGALLOC-NEXT: $sgpr5 = V_READLANE_B32 $vgpr1, 3
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; REGALLOC-NEXT: $exec = S_OR_B64 $exec, killed renamable $sgpr4_sgpr5, implicit-def dead $scc
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; REGALLOC-NEXT: renamable $sgpr4 = S_MOV_B32 5
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; REGALLOC-NEXT: renamable $vgpr0 = V_MUL_LO_U32_e64 killed $vgpr0, killed $sgpr4, implicit $exec
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; REGALLOC-NEXT: KILL killed renamable $vgpr1
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; REGALLOC-NEXT: SI_RETURN implicit killed $vgpr0
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bb.0:
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%cmp = icmp slt i32 %arg0, 50
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br i1 %cmp, label %bb.1, label %bb.2
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bb.1:
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%val1 = add i32 %arg1, 10
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br label %bb.3
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bb.2:
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%val2 = add i32 %arg2, 20
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br label %bb.3
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bb.3:
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%val = phi i32 [ %val1, %bb.1 ], [ %val2, %bb.2 ]
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%ret = mul i32 %val, 5;
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ret i32 %ret
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}

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