summaryrefslogtreecommitdiff
path: root/test/CodeGen/X86/scavenger.mir
blob: 5e964f8ab9eb829acfd67b5dba41fc4d5ffbefa3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
# RUN: llc -mtriple=i386-- -run-pass scavenger-test -verify-machineinstrs -o - %s | FileCheck %s
---
# CHECK-LABEL: name: func0
name: func0
tracksRegLiveness: true
body: |
  bb.0:
    ; CHECK: [[REG0:%e[a-z]+]] = MOV32ri 42
    ; CHECK: %ebp = COPY killed [[REG0]]
    %0 : gr32 = MOV32ri 42
    %ebp = COPY %0
...
---
# CHECK-LABEL: name: func2
name: func2
tracksRegLiveness: true
body: |
  bb.0:
    ; CHECK-NOT: %eax = MOV32ri 42
    ; CHECK: [[REG0:%e[a-z]+]] = MOV32ri 42
    ; CHECK: %ebp = COPY killed [[REG0]]
    %eax = MOV32ri 13
    %0 : gr32 = MOV32ri 42
    %ebp = COPY %0

    ; CHECK: [[REG1:%e[a-z]+]] = MOV32ri 23
    ; CHECK: [[REG2:%e[a-z]+]] = MOV32ri 7
    ; CHECK: [[REG1]] = ADD32ri8 [[REG1]], 5, implicit-def dead %eflags
    %1 : gr32 = MOV32ri 23
    %2 : gr32 = MOV32ri 7
    %1 = ADD32ri8 %1, 5, implicit-def dead %eflags

    NOOP implicit %ebp

    ; CHECK: NOOP implicit killed [[REG2]]
    ; CHECK: NOOP implicit killed [[REG1]]
    NOOP implicit %2
    NOOP implicit %1
    RETQ %eax
...
---
# CHECK-LABEL: name: func3
name: func3
tracksRegLiveness: true
body: |
  bb.0:
    ; CHECK dead {{%e[a-z]+}} = MOV32ri 42
    dead %0 : gr32 = MOV32ri 42
...