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https://github.com/c64scene-ar/llvm-6502.git
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b83896903b
This commit implements the initial serialization of stack objects from the MachineFrameInfo class. It can only serialize the ordinary stack objects (including ordinary spill slots), but it doesn't serialize variable sized or fixed stack objects yet. The stack objects are serialized using a YAML sequence of YAML inline mappings. Each mapping has the object's ID, type, size, offset and alignment. The stack objects are a part of machine function's YAML mapping. Reviewers: Duncan P. N. Exon Smith git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241922 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.1 KiB
YAML
40 lines
1.1 KiB
YAML
# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
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# This test ensures that the MIR parser parses stack objects correctly.
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--- |
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define i32 @test(i32 %a) #0 {
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entry:
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%b = alloca i32
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%x = alloca i64
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store i32 %a, i32* %b
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store i64 2, i64* %x
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%c = load i32, i32* %b
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ret i32 %c
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}
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attributes #0 = { "no-frame-pointer-elim"="false" }
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...
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---
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name: test
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frameInfo:
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maxAlignment: 8
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# CHECK: stack:
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# CHECK-NEXT: - { id: 0, offset: -12, size: 4, alignment: 4 }
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# CHECK-NEXT: - { id: 1, offset: -24, size: 8, alignment: 8 }
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# CHECK-NEXT: - { id: 2, type: spill-slot, offset: -32, size: 4, alignment: 4 }
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stack:
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- { id: 0, offset: -12, size: 4, alignment: 4 }
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- { id: 1, offset: -24, size: 8, alignment: 8 }
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- { id: 2, type: spill-slot, offset: -32, size: 4, alignment: 4 }
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body:
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- id: 0
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name: entry
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instructions:
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- 'MOV32mr %rsp, 1, _, -4, _, %edi'
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- 'MOV64mi32 %rsp, 1, _, -16, _, 2'
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- '%eax = MOV32rm %rsp, 1, _, -4, _'
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- 'RETQ %eax'
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...
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