## Check that BOLT handles correctly folding functions with --icf=safe that can be referenced by non-control flow instructions,
## when binary is built with -fno-PIC/-fno-PIE.

# REQUIRES: system-linux, asserts
# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o
# RUN: %clang %cflags %t1.o -o %t.exe -Wl,-q -no-pie
# RUN: llvm-bolt --no-threads %t.exe --icf -debug-only=bolt-icf -o %t.bolt 2>&1 | FileCheck --check-prefix=ICFCHECK %s
# RUN: llvm-bolt --no-threads %t.exe --icf=safe -debug-only=bolt-icf -o %t.bolt 2>&1 | FileCheck --check-prefix=SAFEICFCHECK %s

# ICFCHECK:      ICF iteration 1
# ICFCHECK-NEXT: folding barAddFunc into fooAddFunc
# ICFCHECK-NEXT: folding barMulFunc into fooMulFunc

# SAFEICFCHECK:      skipping function with reference taken fooMulFunc
# SAFEICFCHECK-NEXT: skipping function with reference taken barMulFunc
# SAFEICFCHECK-NEXT: skipping function with reference taken barAddFunc
# SAFEICFCHECK-NEXT: ICF iteration 1

## clang++ main.cpp -c -o -fno-PIC
## Similar code gets generated for external reference function.
## Other functions removed for brevity.
## const static int (*const funcGlobalBarAdd)(int, int) = barAdd;
## const int (*const funcGlobalBarMul)(int, int) = barMul;
## int main(int argc, char **argv) {
##   int temp = helper1(funcGlobalBarAdd, FooVar, BarVar)
##   return temp;
## }
## Manually modified to remove "extra" assembly.
	.globl	fooMulFunc
	.type	fooMulFunc,@function
fooMulFunc:
	imull	-8(%rbp), %eax
	retq
	.size	fooMulFunc, .-fooMulFunc

	.globl	barMulFunc
	.type	barMulFunc,@function
barMulFunc:
	imull	-8(%rbp), %eax
	retq
	.size	barMulFunc, .-barMulFunc

	.globl	fooAddFunc
	.type	fooAddFunc,@function
fooAddFunc:
	addl	-8(%rbp), %eax
	retq
	.size	fooAddFunc, .-fooAddFunc

	.globl	barAddFunc
	.type	barAddFunc,@function
barAddFunc:
	addl	-8(%rbp), %eax
	retq
	.size	barAddFunc, .-barAddFunc

	.globl	helperFunc
	.type	helperFunc,@function
helperFunc:
	movabsq	$barAddFunc, %rax
	cmpq	%rax, -16(%rbp)
	retq
	.size	helperFunc, .-helperFunc

	.globl	main
	.type	main,@function
main:
	movl	FooVar, %esi
	movl	BarVar, %edx
	movabsq	$barAddFunc, %rdi
	callq	helperFunc
	movabsq	$fooMulFunc, %rdi
	movabsq	$barMulFunc, %rsi
	retq
	.size	main, .-main

	.type	FooVar,@object
	.data
	.globl	FooVar
FooVar:
	.long	1
	.size	FooVar, 4

	.type	BarVar,@object
	.globl	BarVar
BarVar:
	.long	2
	.size	BarVar, 4

	.type	.L.str,@object
	.section	.rodata.str1.1,"aMS",@progbits,1
.L.str:
	.asciz	"val: %d\n"
	.size	.L.str, 9