[llvm] [BOLT][AArch64]support `inline-small-functions` for AArch64 (PR #120187)

[via llvm-commits]

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@@ -0,0 +1,48 @@
+## This test checks that inline is properly handled by BOLT on aarch64.
+
+# REQUIRES: system-linux, asserts
+
+# RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown %s -o %t.o
+# RUN: %clang %cflags -O0 %t.o -o %t.exe -Wl,-q
+# RUN: llvm-bolt --inline-small-functions --print-inline  --print-only=_Z3barP1A  \
+# RUN: %t.exe -o %t.bolt  | FileCheck %s
+
+# CHECK: BOLT-INFO: inlined 0 calls at 1 call sites in 2 iteration(s). Change in binary size: 4 bytes.
+# CHECK: Binary Function "_Z3barP1A" after inlining {
+# CHECK-NOT: bl	_Z3fooP1A
+# CHECK: ldr	x8, [x0]
+# CHECK-NEXT: ldr	w0, [x8]
+ 
+	.text
+	.globl	_Z3fooP1A                      
+	.type	_Z3fooP1A, at function
+_Z3fooP1A:                              
+	ldr	x8, [x0]
+	ldr	w0, [x8]
+	ret
+.Lfunc_end0:
+	.size	_Z3fooP1A, .Lfunc_end0-_Z3fooP1A
+
+	.globl	_Z3barP1A                       
+	.type	_Z3barP1A, at function
+_Z3barP1A:                              
+	stp	x29, x30, [sp, #-16]!           
+	mov	x29, sp
+	bl	_Z3fooP1A
+	mul	w0, w0, w0
+	ldp	x29, x30, [sp], #16             
+	ret
+.Lfunc_end1:
+	.size	_Z3barP1A, .Lfunc_end1-_Z3barP1A
+
+	.globl	main                            
+	.p2align	2
+	.type	main, at function
+main:                                   
+	mov	w0, wzr
+	ret
+.Lfunc_end2:
+	.size	main, .Lfunc_end2-main
+	
+	.section	".note.GNU-stack","", at progbits
+	.addrsig
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liusy58 wrote:

fix it now

https://github.com/llvm/llvm-project/pull/120187