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

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (27 lines) | stat: -rw-r--r-- 771 bytes parent folder | download | duplicates (12)
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, i32* @g, align 4
    %0 = load i32, i32* 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 `i32* undef`)
    RET_ReallyLR implicit $w0

...