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llvm-mirror/test/CodeGen/Thumb2/mve-stacksplot.mir
Sjoerd Meijer bbf5be9d55 [MIR][ARM] MachineOperand comments
This adds infrastructure to print and parse MIR MachineOperand comments.
The motivation for the ARM backend is to print condition code names instead of
magic constants that are difficult to read (for human beings). For example,
instead of this:

  dead renamable $r2, $cpsr = tEOR killed renamable $r2, renamable $r1, 14, $noreg
  t2Bcc %bb.4, 0, killed $cpsr

we now print this:

  dead renamable $r2, $cpsr = tEOR killed renamable $r2, renamable $r1, 14 /* CC::always */, $noreg
  t2Bcc %bb.4, 0 /* CC:eq */, killed $cpsr

This shows that MachineOperand comments are enclosed between /* and */. In this
example, the EOR instruction is not conditionally executed (i.e. it is "always
executed"), which is encoded by the 14 immediate machine operand. Thus, now
this machine operand has /* CC::always */ as a comment. The 0 on the next
conditional branch instruction represents the equal condition code, thus now
this operand has /* CC:eq */ as a comment.

As it is a comment, the MI lexer/parser completely ignores it. The benefit is
that this keeps the change in the lexer extremely minimal and no target
specific parsing needs to be done. The changes on the MIPrinter side are also
minimal, as there is only one target hooks that is used to create the machine
operand comments.

Differential Revision: https://reviews.llvm.org/D74306
2020-02-24 14:19:21 +00:00

185 lines
6.4 KiB
YAML

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - %s -mtriple=thumbv8.1m.main-arm-none-eabi -mattr=+mve.fp -run-pass=stack-protector -run-pass=prologepilog | FileCheck %s
---
name: func0
tracksRegLiveness: true
stack:
- { id: 0, name: '', type: default, offset: 0, size: 16, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
local-offset: -16, debug-info-variable: '', debug-info-expression: '',
debug-info-location: '' }
body: |
bb.0:
; CHECK-LABEL: name: func0
; CHECK: liveins: $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $lr
; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 36
; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
; CHECK: frame-setup CFI_INSTRUCTION offset $r11, -8
; CHECK: frame-setup CFI_INSTRUCTION offset $r10, -12
; CHECK: frame-setup CFI_INSTRUCTION offset $r9, -16
; CHECK: frame-setup CFI_INSTRUCTION offset $r8, -20
; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -24
; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -28
; CHECK: frame-setup CFI_INSTRUCTION offset $r5, -32
; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -36
; CHECK: $sp = frame-setup tSUBspi $sp, 5, 14 /* CC::al */, $noreg
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 56
; CHECK: $r0 = IMPLICIT_DEF
; CHECK: $r1 = IMPLICIT_DEF
; CHECK: $r2 = IMPLICIT_DEF
; CHECK: $r3 = IMPLICIT_DEF
; CHECK: $r4 = IMPLICIT_DEF
; CHECK: $r5 = IMPLICIT_DEF
; CHECK: $r6 = IMPLICIT_DEF
; CHECK: $r7 = IMPLICIT_DEF
; CHECK: $r8 = IMPLICIT_DEF
; CHECK: $r9 = IMPLICIT_DEF
; CHECK: $r10 = IMPLICIT_DEF
; CHECK: $r11 = IMPLICIT_DEF
; CHECK: $r12 = IMPLICIT_DEF
; CHECK: $lr = IMPLICIT_DEF
; CHECK: t2STRi12 killed $r0, $sp, 0, 14 /* CC::al */, $noreg :: (store 4 into %stack.1)
; CHECK: $r0 = tMOVr killed $sp, 14 /* CC::al */, $noreg
; CHECK: renamable $q2 = MVE_VLDRBU32 killed $r0, 16, 0, $noreg :: (load 4 from %stack.0 + 12)
; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg :: (load 4 from %stack.1)
; CHECK: KILL $r0
; CHECK: KILL $r1
; CHECK: KILL $r2
; CHECK: KILL $r3
; CHECK: KILL $r4
; CHECK: KILL $r5
; CHECK: KILL $r6
; CHECK: KILL $r7
; CHECK: KILL $r8
; CHECK: KILL $r9
; CHECK: KILL $r10
; CHECK: KILL $r11
; CHECK: KILL $r12
; CHECK: KILL $lr
$r0 = IMPLICIT_DEF
$r1 = IMPLICIT_DEF
$r2 = IMPLICIT_DEF
$r3 = IMPLICIT_DEF
$r4 = IMPLICIT_DEF
$r5 = IMPLICIT_DEF
$r6 = IMPLICIT_DEF
$r7 = IMPLICIT_DEF
$r8 = IMPLICIT_DEF
$r9 = IMPLICIT_DEF
$r10 = IMPLICIT_DEF
$r11 = IMPLICIT_DEF
$r12 = IMPLICIT_DEF
$lr = IMPLICIT_DEF
renamable $q2 = MVE_VLDRBU32 %stack.0, 12, 0, $noreg :: (load 4 from %stack.0 + 12)
KILL $r0
KILL $r1
KILL $r2
KILL $r3
KILL $r4
KILL $r5
KILL $r6
KILL $r7
KILL $r8
KILL $r9
KILL $r10
KILL $r11
KILL $r12
KILL $lr
...
---
name: func1
tracksRegLiveness: true
stack:
- { id: 0, name: '', type: default, offset: 0, size: 16, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
local-offset: -1200, debug-info-variable: '', debug-info-expression: '',
debug-info-location: '' }
- { id: 1, name: '', type: default, offset: 0, size: 1200, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
local-offset: -1200, debug-info-variable: '', debug-info-expression: '',
debug-info-location: '' }
body: |
bb.0:
; CHECK-LABEL: name: func1
; CHECK: liveins: $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $lr
; CHECK: $sp = frame-setup t2STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r4, killed $r5, killed $r6, killed $r7, killed $r8, killed $r9, killed $r10, killed $r11, killed $lr
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 36
; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
; CHECK: frame-setup CFI_INSTRUCTION offset $r11, -8
; CHECK: frame-setup CFI_INSTRUCTION offset $r10, -12
; CHECK: frame-setup CFI_INSTRUCTION offset $r9, -16
; CHECK: frame-setup CFI_INSTRUCTION offset $r8, -20
; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -24
; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -28
; CHECK: frame-setup CFI_INSTRUCTION offset $r5, -32
; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -36
; CHECK: $sp = frame-setup t2SUBspImm12 killed $sp, 1220, 14 /* CC::al */, $noreg
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 1256
; CHECK: $r0 = IMPLICIT_DEF
; CHECK: $r1 = IMPLICIT_DEF
; CHECK: $r2 = IMPLICIT_DEF
; CHECK: $r3 = IMPLICIT_DEF
; CHECK: $r4 = IMPLICIT_DEF
; CHECK: $r5 = IMPLICIT_DEF
; CHECK: $r6 = IMPLICIT_DEF
; CHECK: $r7 = IMPLICIT_DEF
; CHECK: $r8 = IMPLICIT_DEF
; CHECK: $r9 = IMPLICIT_DEF
; CHECK: $r10 = IMPLICIT_DEF
; CHECK: $r11 = IMPLICIT_DEF
; CHECK: $r12 = IMPLICIT_DEF
; CHECK: $lr = IMPLICIT_DEF
; CHECK: t2STRi12 killed $r0, $sp, 0, 14 /* CC::al */, $noreg :: (store 4 into %stack.2)
; CHECK: $r0 = t2ADDri killed $sp, 1152, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $q2 = MVE_VLDRBU8 killed $r0, 52, 0, $noreg :: (load 4 from %stack.0)
; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg :: (load 4 from %stack.2)
; CHECK: KILL $r0
; CHECK: KILL $r1
; CHECK: KILL $r2
; CHECK: KILL $r3
; CHECK: KILL $r4
; CHECK: KILL $r5
; CHECK: KILL $r6
; CHECK: KILL $r7
; CHECK: KILL $r8
; CHECK: KILL $r9
; CHECK: KILL $r10
; CHECK: KILL $r11
; CHECK: KILL $r12
; CHECK: KILL $lr
$r0 = IMPLICIT_DEF
$r1 = IMPLICIT_DEF
$r2 = IMPLICIT_DEF
$r3 = IMPLICIT_DEF
$r4 = IMPLICIT_DEF
$r5 = IMPLICIT_DEF
$r6 = IMPLICIT_DEF
$r7 = IMPLICIT_DEF
$r8 = IMPLICIT_DEF
$r9 = IMPLICIT_DEF
$r10 = IMPLICIT_DEF
$r11 = IMPLICIT_DEF
$r12 = IMPLICIT_DEF
$lr = IMPLICIT_DEF
renamable $q2 = MVE_VLDRBU8 %stack.0, 0, 0, $noreg :: (load 4 from %stack.0)
KILL $r0
KILL $r1
KILL $r2
KILL $r3
KILL $r4
KILL $r5
KILL $r6
KILL $r7
KILL $r8
KILL $r9
KILL $r10
KILL $r11
KILL $r12
KILL $lr
...