llvm-project/llvm/test/CodeGen/MIR/X86/global-value-operands.mir

# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
# This test ensures that the MIR parser parses global value operands correctly.

--- |

  @G = external global i32
  @0 = external global i32

  define i32 @inc() {
  entry:
    %a = load i32, i32* @G
    %b = add i32 %a, 1
    ret i32 %b
  }

  define i32 @inc2() {
  entry:
    %a = load i32, i32* @0
    %b = add i32 %a, 1
    ret i32 %b
  }

  @.$0  = external global i32
  @-_-  = external global i32
  @_-_a = external global i32
  @$.-B = external global i32

  define i32 @test() {
  entry:
    %a = load i32, i32* @.$0
    store i32 %a, i32* @-_-
    %b = load i32, i32* @_-_a
    store i32 %b, i32* @$.-B
    ret i32 %b
  }

  @"\01Hello@$%09 \\ World," = external global i32

  define i32 @test2() {
  entry:
    %a = load i32, i32* @"\01Hello@$%09 \\ World,"
    ret i32 %a
  }

  define i32 @test3() {
  entry:
    %a = load i32, i32* @.$0
    store i32 %a, i32* @-_-
    %b = load i32, i32* @_-_a
    store i32 %b, i32* @$.-B
    ret i32 %b
  }

  define i32 @tf() {
  entry:
    %a = load i32, i32* @G
    %b = add i32 %a, 1
    ret i32 %b
  }

...
---
# CHECK: name: inc
name: inc
body: |
  bb.0.entry:
    ; CHECK: %rax = MOV64rm %rip, 1, _, @G, _
    %rax = MOV64rm %rip, 1, _, @G, _
    %eax = MOV32rm %rax, 1, _, 0, _
    %eax = INC32r %eax, implicit-def %eflags
    RETQ %eax
...
---
# CHECK: name: inc2
name: inc2
body: |
  bb.0.entry:
    ; CHECK: %rax = MOV64rm %rip, 1, _, @0, _
    %rax = MOV64rm %rip, 1, _, @0, _
    %eax = MOV32rm %rax, 1, _, 0, _
    %eax = INC32r %eax, implicit-def %eflags
    RETQ %eax
...
---
name:            test
body: |
  bb.0.entry:
    ; CHECK: , @".$0",
    ; CHECK: , @-_-,
    ; CHECK: , @_-_a,
    ; CHECK: , @"$.-B",
    %rax = MOV64rm %rip, 1, _, @.$0, _
    %eax = MOV32rm killed %rax, 1, _, 0, _
    %rcx = MOV64rm %rip, 1, _, @-_-, _
    MOV32mr killed %rcx, 1, _, 0, _, killed %eax
    %rax = MOV64rm %rip, 1, _, @_-_a, _
    %eax = MOV32rm killed %rax, 1, _, 0, _
    %rcx = MOV64rm %rip, 1, _, @$.-B, _
    MOV32mr killed %rcx, 1, _, 0, _, %eax
    RETQ %eax
...
---
name:            test2
body: |
  bb.0.entry:
    ; CHECK: , @"\01Hello@$%09 \5C World,",
    %rax = MOV64rm %rip, 1, _, @"\01Hello@$%09 \\ World,", _
    %eax = MOV32rm killed %rax, 1, _, 0, _
    RETQ %eax
...
---
# CHECK: name: test3
name:            test3
body: |
  bb.0.entry:
    ; CHECK: , @".$0",
    ; CHECK: , @-_-,
    ; CHECK: , @_-_a + 4,
    ; CHECK: , @"$.-B" - 8,
    %rax = MOV64rm %rip, 1, _, @.$0 + 0, _
    %eax = MOV32rm killed %rax, 1, _, 0, _
    %rcx = MOV64rm %rip, 1, _, @-_- - 0, _
    MOV32mr killed %rcx, 1, _, 0, _, killed %eax
    %rax = MOV64rm %rip, 1, _, @_-_a + 4, _
    %eax = MOV32rm killed %rax, 1, _, 0, _
    %rcx = MOV64rm %rip, 1, _, @$.-B - 8, _
    MOV32mr killed %rcx, 1, _, 0, _, %eax
    RETQ %eax
...
---
# CHECK: name: tf
name: tf
body: |
  bb.0.entry:
  ; CHECK: %rax = MOV64rm %rip, 1, _, target-flags(x86-gotpcrel) @G, _
    %rax = MOV64rm %rip, 1, _, target-flags(x86-gotpcrel) @G, _
    %eax = MOV32rm %rax, 1, _, 0, _
    %eax = INC32r %eax, implicit-def %eflags
    RETQ %eax
...