Home | History | Annotate | Download | only in X86 
      1 # RUN: llc -march=x86 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
      2 # This test ensures that the MIR parser parses fixed stack memory operands
      3 # correctly.
      4 
      5 --- |
      6 
      7   define i32 @test(i32 %a) #0 {
      8   entry:
      9     %b = alloca i32
     10     store i32 %a, i32* %b
     11     %c = load i32, i32* %b
     12     ret i32 %c
     13   }
     14 
     15   attributes #0 = { "no-frame-pointer-elim"="false" }
     16 
     17 ...
     18 ---
     19 name:            test
     20 alignment:       4
     21 tracksRegLiveness: true
     22 frameInfo:
     23   stackSize:       4
     24   maxAlignment:    4
     25 fixedStack:
     26   - { id: 0, offset: 0, size: 4, alignment: 16, isImmutable: true }
     27 stack:
     28   - { id: 0, name: b, offset: -8, size: 4, alignment: 4 }
     29 body: |
     30   bb.0.entry:
     31     frame-setup PUSH32r undef %eax, implicit-def %esp, implicit %esp
     32     CFI_INSTRUCTION .cfi_def_cfa_offset 8
     33   ; CHECK: name: test
     34   ; CHECK: %eax = MOV32rm %esp, 1, _, 8, _ :: (load 4 from %fixed-stack.0, align 16)
     35     %eax = MOV32rm %esp, 1, _, 8, _ :: (load 4 from %fixed-stack.0, align 16)
     36     MOV32mr %esp, 1, _, 0, _, %eax :: (store 4 into %ir.b)
     37     %edx = POP32r implicit-def %esp, implicit %esp
     38     RETL %eax
     39 ...
     40