derek.holloway
7502bf64a4
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47 lines
1.2 KiB
ArmAsm
47 lines
1.2 KiB
ArmAsm
# This test checks that inlining functions with fused pointer-auth-and-return
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# instructions into a location with a tailcall is properly handled by BOLT.
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# Because _Z3barP1A ends in a tailcall, we don't remove the return instruction
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# from the inlined block. Therefore, we should see a retaa, and not an autiasp.
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# REQUIRES: system-linux
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# RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown -mattr=+v8.3a %s -o %t.o
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# RUN: %clang %cflags -O0 %t.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt --inline-all --print-inline --print-only=_Z3barP1A \
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# RUN: %t.exe -o %t.bolt | FileCheck %s
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# CHECK: BOLT-INFO: inlined 0 calls at 1 call sites in 2 iteration(s). Change in binary size: 12 bytes.
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# CHECK: Binary Function "_Z3barP1A" after inlining {
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# CHECK-NOT: bl _Z3fooP1A
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# CHECK: mov x29, sp
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# CHECK-NEXT: paciasp
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# CHECK-NEXT: ldr x8, [x0]
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# CHECK-NEXT: ldr w0, [x8]
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# CHECK-NEXT: retaa
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.text
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.globl _Z3fooP1A
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.type _Z3fooP1A,@function
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_Z3fooP1A:
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paciasp
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ldr x8, [x0]
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ldr w0, [x8]
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retaa
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.size _Z3fooP1A, .-_Z3fooP1A
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.globl _Z3barP1A
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.type _Z3barP1A,@function
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_Z3barP1A:
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stp x29, x30, [sp, #-16]!
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mov x29, sp
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b _Z3fooP1A // tailcall
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.size _Z3barP1A, .-_Z3barP1A
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.globl main
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.p2align 2
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.type main,@function
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main:
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mov w0, wzr
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ret
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.size main, .-main
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