llvm-project/llvm/test/CodeGen/MIR/X86/fixed-stack-objects.mir

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# RUN: llc -march=x86 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
# This test ensures that the MIR parser parses fixed stack objects correctly.
--- |
define i32 @test(i32 %a) #0 {
entry:
%b = alloca i32
store i32 %a, i32* %b
%c = load i32, i32* %b
ret i32 %c
}
attributes #0 = { "no-frame-pointer-elim"="false" }
...
---
name: test
frameInfo:
stackSize: 4
maxAlignment: 4
# CHECK: fixedStack:
# CHECK-NEXT: - { id: 0, offset: 0, size: 4, alignment: 4, isImmutable: true, isAliased: false }
fixedStack:
- { id: 0, offset: 0, size: 4, alignment: 4, isImmutable: true, isAliased: false }
stack:
- { id: 0, offset: -8, size: 4, alignment: 4 }
body:
- id: 0
name: entry
instructions:
- '%eax = MOV32rm %esp, 1, _, 8, _'
- 'MOV32mr %esp, 1, _, 0, _, %eax'
- 'RETL %eax'
...