File: ptrauth-pseudo-instructions.mir

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llvm-toolchain-20 1%3A20.1.6-1~exp1
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# RUN: llc -mtriple=aarch64--- -run-pass=aarch64-ptrauth -verify-machineinstrs %s -o - | FileCheck %s

# Test the corner cases that cannot be reliably tested using LLVM IR as input.

--- |
  define i64 @blend_untied(i64 %unused, i64 %ptr_arg) {
    ret i64 0
  }
...
---
# Check that the input register is copied to the output one, if not tied.

name:            blend_untied
tracksRegLiveness: true
body:             |
  bb.0:
  liveins: $lr, $x0, $x1
    $x0 = PAUTH_BLEND $x1, 42
    RET undef $lr

# CHECK:       liveins: $lr, $x0, $x1
# CHECK-NEXT:    {{^ +$}}
# CHECK-NEXT:    $x0 = ORRXrs $xzr, $x1, 0
# CHECK-NEXT:    $x0 = MOVKXi $x0, 42, 48
# CHECK-NEXT:    RET undef $lr

...