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

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llvm-toolchain-13 1%3A13.0.1-11
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# 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

...