test/CodeGen/MIR/X86/machine-basic-block-operands.mir

# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
# This test ensures that the MIR parser parses machine basic block operands.

--- |

  define i32 @foo(i32* %p) {
  entry:
    %a = load i32, i32* %p
    %0 = icmp sle i32 %a, 10
    br i1 %0, label %less, label %exit

  less:
    ret i32 0

  exit:
    ret i32 %a
  }

  define i32 @bar(i32* %p) {
  entry:
    %a = load i32, i32* %p
    %b = icmp sle i32 %a, 10
    br i1 %b, label %0, label %1

  ; <label>:0
    ret i32 0

  ; <label>:1
    ret i32 %a
  }

...
---
# CHECK: name: foo
name:            foo
body:
 # CHECK: name: entry
 - id:              0
   name:            entry
   instructions:
     - '%eax = MOV32rm %rdi, 1, _, 0, _'
     # CHECK:      - 'CMP32ri8 %eax, 10
     # CHECK-NEXT: - 'JG_1 %bb.2.exit
     - 'CMP32ri8 %eax, 10, implicit-def %eflags'
     - 'JG_1 %bb.2.exit, implicit %eflags'
 # CHECK: name: less
 - id:              1
   name:            less
   instructions:
     - '%eax = MOV32r0 implicit-def %eflags'
 - id:              2
   name:            exit
   instructions:
     - 'RETQ %eax'
...
---
# CHECK: name: bar
name:            bar
body:
 # CHECK: name: entry
 - id: 0
   name: entry
   instructions:
     - '%eax = MOV32rm %rdi, 1, _, 0, _'
     # CHECK:      - 'CMP32ri8 %eax, 10
     # CHECK-NEXT: - 'JG_1 %bb.2
     - 'CMP32ri8 %eax, 10, implicit-def %eflags'
     - 'JG_1 %bb.3, implicit %eflags'
 - id: 1
   instructions:
     - '%eax = MOV32r0 implicit-def %eflags'
 - id: 3
   instructions:
     - 'RETQ %eax'
...