| # RUN: llc -mtriple riscv64 -mattr=+m,+v -run-pass=prologepilog \ |
| # RUN: -riscv-v-vector-bits-min=512 -o - %s | FileCheck %s |
| # |
| # Stack layout of this program |
| # |--------------------------| -- <-- Incoming SP |
| # | a7 (Vaarg) | |
| # | ------------------------ | -- <-- New SP + vlenb + 72 |
| # | a6 (Vaarg) | |
| # | ------------------------ | -- <-- New SP + vlenb + 64 |
| # | ra (Callee-saved reg) | |
| # | ------------------------ | -- <-- New SP + vlenb + 56 |
| # | s0 (Callee-saved reg) | |
| # | ------------------------ | -- <-- New SP + vlenb + 48 |
| # | s1 (Callee-saved reg) | |
| # | ------------------------ | -- <-- New SP + vlenb + 40 |
| # | 8 bytes of padding | |
| # | ------------------------ | -- <-- New SP + vlenb |
| # | v8 (RVV objects) | |
| # | ------------------------ | -- <-- New SP + 32 |
| # | buf1 | |
| # |--------------------------| -- <-- New SP + 16 |
| # | Stack ID 5 | |
| # |--------------------------| -- <-- New SP + 8 |
| # | Stack ID 6 | |
| # |--------------------------| -- <-- New SP |
| |
| --- | |
| ; ModuleID = 'wrong-stack-offset-for-rvv-object.ll' |
| source_filename = "wrong-stack-offset-for-rvv-object.ll" |
| target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n64-S128" |
| target triple = "riscv64" |
| |
| %struct = type { i32 } |
| |
| define void @asm_fprintf(%struct %file, i8* %p, [10 x i8]* %buf, i8* %arrayidx3, <2 x i8>* %0, i8* %1, ...) #0 { |
| entry: |
| %buf1 = alloca [10 x i8], i32 0, align 8 |
| %arrayidx32 = getelementptr inbounds [10 x i8], [10 x i8]* %buf, i64 0, i64 1 |
| br label %while.cond |
| |
| while.cond: ; preds = %while.cond, %sw.bb, %entry |
| %incdec.ptr = getelementptr inbounds i8, i8* undef, i64 1 |
| %2 = load i8, i8* null, align 1 |
| %3 = zext i8 0 to i64 |
| %cond = icmp eq i64 %3, 0 |
| br i1 %cond, label %sw.bb, label %while.cond |
| |
| sw.bb: ; preds = %while.cond |
| %4 = load i8, i8* null, align 1 |
| store <2 x i8> zeroinitializer, <2 x i8>* %0, align 1 |
| %call = call i32 (i8*, ...) @fprintf(i8* %p) |
| br label %while.cond |
| } |
| |
| declare i32 @fprintf(i8*, ...) #0 |
| |
| attributes #0 = { "target-features"="+m,+v" } |
| |
| ... |
| --- |
| name: asm_fprintf |
| alignment: 4 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| failedISel: false |
| tracksRegLiveness: true |
| hasWinCFI: false |
| failsVerification: false |
| tracksDebugUserValues: true |
| registers: [] |
| liveins: |
| - { reg: '$x11', virtual-reg: '' } |
| - { reg: '$x14', virtual-reg: '' } |
| - { reg: '$x16', virtual-reg: '' } |
| - { reg: '$x17', virtual-reg: '' } |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 0 |
| offsetAdjustment: 0 |
| maxAlignment: 8 |
| adjustsStack: false |
| hasCalls: true |
| stackProtector: '' |
| maxCallFrameSize: 4294967295 |
| cvBytesOfCalleeSavedRegisters: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| hasTailCall: false |
| localFrameSize: 0 |
| savePoint: '' |
| restorePoint: '' |
| fixedStack: |
| - { id: 0, type: default, offset: -8, size: 8, alignment: 8, stack-id: default, |
| isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 1, type: default, offset: -16, size: 8, alignment: 16, stack-id: default, |
| isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 2, type: default, offset: -16, size: 8, alignment: 16, stack-id: default, |
| isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| stack: |
| - { id: 0, name: buf1, type: default, offset: 0, size: 1, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 1, name: '', type: spill-slot, offset: 0, size: 8, alignment: 8, |
| stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: [] |
| debugValueSubstitutions: [] |
| constants: [] |
| machineFunctionInfo: |
| varArgsFrameIndex: -1 |
| varArgsSaveSize: 16 |
| body: | |
| ; CHECK-LABEL: name: asm_fprintf |
| ; CHECK: stack: |
| ; CHECK-NEXT: - { id: 0, name: buf1, type: default, offset: -48, size: 1, alignment: 8, |
| ; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| ; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| ; CHECK-NEXT: - { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8, |
| ; CHECK-NEXT: stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true, |
| ; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| ; CHECK-NEXT: - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8, |
| ; CHECK-NEXT: stack-id: default, callee-saved-register: '$x1', callee-saved-restored: true, |
| ; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| ; CHECK-NEXT: - { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8, |
| ; CHECK-NEXT: stack-id: default, callee-saved-register: '$x8', callee-saved-restored: true, |
| ; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| ; CHECK-NEXT: - { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8, |
| ; CHECK-NEXT: stack-id: default, callee-saved-register: '$x9', callee-saved-restored: true, |
| ; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| ; CHECK-NEXT: - { id: 5, name: '', type: default, offset: -56, size: 8, alignment: 8, |
| ; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| ; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| ; CHECK-NEXT: - { id: 6, name: '', type: default, offset: -64, size: 8, alignment: 8, |
| ; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| ; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| ; CHECK: bb.0.entry: |
| ; CHECK-NEXT: successors: %bb.1(0x80000000) |
| ; CHECK-NEXT: liveins: $x11, $x14, $x16, $x17, $x1, $x8, $x9 |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: $x2 = frame-setup ADDI $x2, -80 |
| ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 80 |
| ; CHECK-NEXT: SD killed $x1, $x2, 56 :: (store (s64) into %stack.2) |
| ; CHECK-NEXT: SD killed $x8, $x2, 48 :: (store (s64) into %stack.3) |
| ; CHECK-NEXT: SD killed $x9, $x2, 40 :: (store (s64) into %stack.4) |
| ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $x1, -24 |
| ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $x8, -32 |
| ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $x9, -40 |
| ; CHECK-NEXT: $x10 = frame-setup PseudoReadVLENB |
| ; CHECK-NEXT: $x10 = frame-setup SLLI killed $x10, 1 |
| ; CHECK-NEXT: $x2 = frame-setup SUB $x2, killed $x10 |
| ; CHECK-NEXT: frame-setup CFI_INSTRUCTION escape 0x0f, 0x0e, 0x72, 0x00, 0x11, 0xd0, 0x00, 0x22, 0x11, 0x02, 0x92, 0xa2, 0x38, 0x00, 0x1e, 0x22 |
| ; CHECK-NEXT: renamable $x8 = COPY $x14 |
| ; CHECK-NEXT: renamable $x9 = COPY $x11 |
| ; CHECK-NEXT: $x10 = PseudoReadVLENB |
| ; CHECK-NEXT: $x10 = SLLI killed $x10, 1 |
| ; CHECK-NEXT: $x10 = ADD $x2, killed $x10 |
| ; CHECK-NEXT: SD killed renamable $x17, killed $x10, 72 :: (store (s64)) |
| ; CHECK-NEXT: $x10 = PseudoReadVLENB |
| ; CHECK-NEXT: $x10 = SLLI killed $x10, 1 |
| ; CHECK-NEXT: $x10 = ADD $x2, killed $x10 |
| ; CHECK-NEXT: SD killed renamable $x16, killed $x10, 64 :: (store (s64) into %fixed-stack.1, align 16) |
| ; CHECK-NEXT: dead $x0 = PseudoVSETIVLI 2, 69 /* e8, mf8, ta, mu */, implicit-def $vl, implicit-def $vtype |
| ; CHECK-NEXT: renamable $v8 = PseudoVMV_V_I_MF8 undef $v8, 0, 2, 3 /* e8 */, 0 /* tu, mu */, implicit $vl, implicit $vtype |
| ; CHECK-NEXT: $x10 = ADDI $x2, 32 |
| ; CHECK-NEXT: VS1R_V killed renamable $v8, killed $x10 :: (store unknown-size into %stack.1, align 8) |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: bb.1.while.cond: |
| ; CHECK-NEXT: successors: %bb.2(0x30000000), %bb.1(0x50000000) |
| ; CHECK-NEXT: liveins: $x8, $x9 |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: BNE $x0, $x0, %bb.1 |
| ; CHECK-NEXT: PseudoBR %bb.2 |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: bb.2.sw.bb: |
| ; CHECK-NEXT: successors: %bb.1(0x80000000) |
| ; CHECK-NEXT: liveins: $x8, $x9 |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: dead $x0 = PseudoVSETIVLI 2, 69 /* e8, mf8, ta, mu */, implicit-def $vl, implicit-def $vtype |
| ; CHECK-NEXT: $x10 = ADDI $x2, 32 |
| ; CHECK-NEXT: renamable $v8 = VL1RE8_V killed $x10 :: (load unknown-size from %stack.1, align 8) |
| ; CHECK-NEXT: PseudoVSE8_V_MF8 killed renamable $v8, renamable $x8, 2, 3 /* e8 */, implicit $vl, implicit $vtype :: (store (s16) into %ir.0, align 1) |
| ; CHECK-NEXT: $x10 = COPY renamable $x9 |
| ; CHECK-NEXT: PseudoCALL target-flags(riscv-plt) @fprintf, csr_ilp32d_lp64d, implicit-def dead $x1, implicit killed $x10, implicit-def $x2, implicit-def dead $x10 |
| ; CHECK-NEXT: PseudoBR %bb.1 |
| bb.0.entry: |
| successors: %bb.1(0x80000000) |
| liveins: $x11, $x14, $x16, $x17 |
| |
| renamable $x8 = COPY $x14 |
| renamable $x9 = COPY $x11 |
| SD killed renamable $x17, %fixed-stack.0, 0 :: (store (s64)) |
| SD killed renamable $x16, %fixed-stack.1, 0 :: (store (s64) into %fixed-stack.1, align 16) |
| dead $x0 = PseudoVSETIVLI 2, 69, implicit-def $vl, implicit-def $vtype |
| renamable $v8 = PseudoVMV_V_I_MF8 undef $v8, 0, 2, 3, 0, implicit $vl, implicit $vtype |
| VS1R_V killed renamable $v8, %stack.1 :: (store unknown-size into %stack.1, align 8) |
| |
| bb.1.while.cond: |
| successors: %bb.2(0x30000000), %bb.1(0x50000000) |
| liveins: $x8, $x9 |
| |
| BNE $x0, $x0, %bb.1 |
| PseudoBR %bb.2 |
| |
| bb.2.sw.bb: |
| successors: %bb.1(0x80000000) |
| liveins: $x8, $x9 |
| |
| dead $x0 = PseudoVSETIVLI 2, 69, implicit-def $vl, implicit-def $vtype |
| renamable $v8 = VL1RE8_V %stack.1 :: (load unknown-size from %stack.1, align 8) |
| PseudoVSE8_V_MF8 killed renamable $v8, renamable $x8, 2, 3, implicit $vl, implicit $vtype :: (store (s16) into %ir.0, align 1) |
| ADJCALLSTACKDOWN 0, 0, implicit-def dead $x2, implicit $x2 |
| $x10 = COPY renamable $x9 |
| PseudoCALL target-flags(riscv-plt) @fprintf, csr_ilp32d_lp64d, implicit-def dead $x1, implicit killed $x10, implicit-def $x2, implicit-def dead $x10 |
| ADJCALLSTACKUP 0, 0, implicit-def dead $x2, implicit $x2 |
| PseudoBR %bb.1 |
| |
| ... |
