File: loh-adrp-add-ldr-clobber.mir

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (31 lines) | stat: -rw-r--r-- 964 bytes parent folder | download | duplicates (17) 
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
 
# RUN: llc -o /dev/null %s -mtriple=aarch64-apple-ios -run-pass=aarch64-collect-loh -debug-only=aarch64-collect-loh 2>&1 | FileCheck %s
# REQUIRES: asserts
--- |
  @sym2 = local_unnamed_addr global [10000000 x i32] zeroinitializer, align 8
  @sym = local_unnamed_addr global i32 zeroinitializer, align 8

  define i32 @main() {
    ret i32 0
  }

...
---
name:            main
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$x22', virtual-reg: '' }
  - { reg: '$x21', virtual-reg: '' }
body:             |
  bb.0:
    liveins: $x21, $x22
    ; Check we don't emit an loh here because there's a clobbering def of x8 before the ldr.
    ; CHECK-LABEL: main
    ; CHECK-NOT: MCLOH_AdrpAddLdr
    renamable $x8 = ADRP target-flags(aarch64-page) @sym
    renamable $x9 = ADDXri killed renamable $x8, target-flags(aarch64-pageoff, aarch64-nc) @sym, 0
    renamable $x8 = ADDXri killed renamable $x22, 1, 0
    $x9 = LDRXui $x9, 0
    RET undef $lr

...