43ad058a01
This is an complementary/alternative fix for D99068. It takes a slightly different approach by explicitly summing up all of the required split part type sizes and ensuring we allocate enough space for them. It also takes the maximum alignment of each part. Compared with D99068 there are fewer changes to the stack objects in existing tests. However, @luismarques has shown in that patch that there are opportunities to reduce our stack usage in the future. Reviewed By: luismarques Differential Revision: https://reviews.llvm.org/D99087
50 lines
2.7 KiB
LLVM
50 lines
2.7 KiB
LLVM
; RUN: llc -mtriple=riscv32 -stop-after finalize-isel < %s | FileCheck %s -check-prefix=RV32
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; RUN: llc -mtriple=riscv64 -stop-after finalize-isel < %s | FileCheck %s -check-prefix=RV64
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declare void @callee(<4 x i8> %v)
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define void @caller() {
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; RV32-LABEL: name: caller
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; RV32: stack:
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; RV32: - { id: 0, name: '', type: default, offset: 0, size: 16, alignment: 4,
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; RV32-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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; RV32-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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; RV32: bb.0 (%ir-block.0):
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; RV32: ADJCALLSTACKDOWN 0, 0, implicit-def dead $x2, implicit $x2
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; RV32: [[ADDI:%[0-9]+]]:gpr = ADDI $x0, 7
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; RV32: SW killed [[ADDI]], %stack.0, 12 :: (store 4 into %stack.0)
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; RV32: [[ADDI1:%[0-9]+]]:gpr = ADDI $x0, 6
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; RV32: SW killed [[ADDI1]], %stack.0, 8 :: (store 4 into %stack.0)
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; RV32: [[ADDI2:%[0-9]+]]:gpr = ADDI $x0, 5
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; RV32: SW killed [[ADDI2]], %stack.0, 4 :: (store 4 into %stack.0)
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; RV32: [[ADDI3:%[0-9]+]]:gpr = ADDI $x0, 4
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; RV32: SW killed [[ADDI3]], %stack.0, 0 :: (store 4 into %stack.0)
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; RV32: [[ADDI4:%[0-9]+]]:gpr = ADDI %stack.0, 0
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; RV32: $x10 = COPY [[ADDI4]]
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; RV32: PseudoCALL target-flags(riscv-plt) @callee, csr_ilp32_lp64, implicit-def dead $x1, implicit $x10, implicit-def $x2
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; RV32: ADJCALLSTACKUP 0, 0, implicit-def dead $x2, implicit $x2
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; RV32: PseudoRET
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; RV64-LABEL: name: caller
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; RV64: stack:
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; RV64: - { id: 0, name: '', type: default, offset: 0, size: 32, alignment: 8,
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; RV64-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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; RV64-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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; RV64: bb.0 (%ir-block.0):
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; RV64: ADJCALLSTACKDOWN 0, 0, implicit-def dead $x2, implicit $x2
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; RV64: [[ADDI:%[0-9]+]]:gpr = ADDI $x0, 7
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; RV64: SD killed [[ADDI]], %stack.0, 24 :: (store 8 into %stack.0)
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; RV64: [[ADDI1:%[0-9]+]]:gpr = ADDI $x0, 6
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; RV64: SD killed [[ADDI1]], %stack.0, 16 :: (store 8 into %stack.0)
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; RV64: [[ADDI2:%[0-9]+]]:gpr = ADDI $x0, 5
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; RV64: SD killed [[ADDI2]], %stack.0, 8 :: (store 8 into %stack.0)
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; RV64: [[ADDI3:%[0-9]+]]:gpr = ADDI $x0, 4
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; RV64: SD killed [[ADDI3]], %stack.0, 0 :: (store 8 into %stack.0)
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; RV64: [[ADDI4:%[0-9]+]]:gpr = ADDI %stack.0, 0
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; RV64: $x10 = COPY [[ADDI4]]
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; RV64: PseudoCALL target-flags(riscv-plt) @callee, csr_ilp32_lp64, implicit-def dead $x1, implicit $x10, implicit-def $x2
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; RV64: ADJCALLSTACKUP 0, 0, implicit-def dead $x2, implicit $x2
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; RV64: PseudoRET
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call void @callee(<4 x i8> <i8 4, i8 5, i8 6, i8 7>)
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ret void
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}
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