| # RUN: llc -march=x86 -run-pass none -o - %s | FileCheck %s |
| # This test ensures that the MIR parser parses fixed stack memory operands |
| # 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 |
| alignment: 4 |
| tracksRegLiveness: true |
| frameInfo: |
| stackSize: 4 |
| maxAlignment: 4 |
| fixedStack: |
| - { id: 0, offset: 0, size: 4, alignment: 16, isImmutable: true } |
| stack: |
| - { id: 0, name: b, offset: -8, size: 4, alignment: 4 } |
| body: | |
| bb.0.entry: |
| frame-setup PUSH32r undef %eax, implicit-def %esp, implicit %esp |
| CFI_INSTRUCTION def_cfa_offset 8 |
| ; CHECK: name: test |
| ; CHECK: %eax = MOV32rm %esp, 1, %noreg, 8, %noreg :: (load 4 from %fixed-stack.0, align 16) |
| %eax = MOV32rm %esp, 1, _, 8, _ :: (load 4 from %fixed-stack.0, align 16) |
| MOV32mr %esp, 1, _, 0, _, %eax :: (store 4 into %ir.b) |
| %edx = POP32r implicit-def %esp, implicit %esp |
| RETL %eax |
| ... |