File: ldst-opt-non-imm-offset.mir

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (27 lines) | stat: -rw-r--r-- 768 bytes parent folder | download | duplicates (9) 
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
 
# RUN: llc -mtriple=aarch64 -run-pass=aarch64-ldst-opt %s -verify-machineinstrs -o - | FileCheck %s
--- |
  @g = common dso_local global i32 0, align 4

  define i32 @test() {
  entry:
    store i32 0, ptr @g, align 4
    %0 = load i32, ptr undef, align 4
    ret i32 %0
  }

...
---
# Don't crash when there's no immediate operand for store.
# CHECK-LABEL: name: test
# CHECK: STRWui $wzr
# CHECK: LDRWui
name:            test
tracksRegLiveness: true
body:             |
  bb.0.entry:
    renamable $x8 = ADRP target-flags(aarch64-page) @g
    STRWui $wzr, killed renamable $x8, target-flags(aarch64-pageoff, aarch64-nc) @g :: (store (s32) into @g)
    renamable $w0 = LDRWui undef renamable $x8, 0 :: (load (s32) from `ptr undef`)
    RET_ReallyLR implicit $w0

...