llvm-project/llvm/test/CodeGen/X86/pic.ll

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; RUN: llc < %s -mtriple=i686-pc-linux-gnu -relocation-model=pic | FileCheck %s -check-prefix=LINUX
@ptr = external global i32*
@dst = external global i32
@src = external global i32
define void @test1() nounwind {
entry:
store i32* @dst, i32** @ptr
%tmp.s = load i32* @src
store i32 %tmp.s, i32* @dst
ret void
; LINUX: test1:
; LINUX: .LBB1_0:
; LINUX: call .Lllvm$1.$piclabel
; LINUX-NEXT: .Lllvm$1.$piclabel:
; LINUX-NEXT: popl
; LINUX: addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$1.$piclabel],
; LINUX: movl dst@GOT(%eax),
; LINUX: movl ptr@GOT(%eax),
; LINUX: movl src@GOT(%eax),
; LINUX: ret
}
@ptr2 = global i32* null
@dst2 = global i32 0
@src2 = global i32 0
define void @test2() nounwind {
entry:
store i32* @dst2, i32** @ptr2
%tmp.s = load i32* @src2
store i32 %tmp.s, i32* @dst2
ret void
; LINUX: test2:
; LINUX: call .Lllvm$2.$piclabel
; LINUX-NEXT: .Lllvm$2.$piclabel:
; LINUX-NEXT: popl
; LINUX: addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$2.$piclabel], %eax
; LINUX: movl dst2@GOT(%eax),
; LINUX: movl ptr2@GOT(%eax),
; LINUX: movl src2@GOT(%eax),
; LINUX: ret
}
declare i8* @malloc(i32)
define void @test3() nounwind {
entry:
%ptr = call i8* @malloc(i32 40)
ret void
; LINUX: test3:
; LINUX: pushl %ebx
; LINUX-NEXT: subl $8, %esp
; LINUX-NEXT: call .Lllvm$3.$piclabel
; LINUX-NEXT: .Lllvm$3.$piclabel:
; LINUX-NEXT: popl %ebx
; LINUX: addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$3.$piclabel], %ebx
; LINUX: movl $40, (%esp)
; LINUX: call malloc@PLT
; LINUX: addl $8, %esp
; LINUX: popl %ebx
; LINUX: ret
}
@pfoo = external global void(...)*
define void @test4() nounwind {
entry:
%tmp = call void(...)*(...)* @afoo()
store void(...)* %tmp, void(...)** @pfoo
%tmp1 = load void(...)** @pfoo
call void(...)* %tmp1()
ret void
; LINUX: test4:
; LINUX: call .Lllvm$4.$piclabel
; LINUX-NEXT: .Lllvm$4.$piclabel:
; LINUX: popl
; LINUX: addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$4.$piclabel],
; LINUX: movl pfoo@GOT(%esi),
; LINUX: call afoo@PLT
; LINUX: call *
}
declare void(...)* @afoo(...)
define void @test5() nounwind {
entry:
call void(...)* @foo()
ret void
; LINUX: test5:
; LINUX: call .Lllvm$5.$piclabel
; LINUX: popl %ebx
; LINUX: addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$5.$piclabel], %ebx
; LINUX: call foo@PLT
}
declare void @foo(...)
@ptr6 = internal global i32* null
@dst6 = internal global i32 0
@src6 = internal global i32 0
define void @test6() nounwind {
entry:
store i32* @dst6, i32** @ptr6
%tmp.s = load i32* @src6
store i32 %tmp.s, i32* @dst6
ret void
; LINUX: test6:
; LINUX: call .Lllvm$6.$piclabel
; LINUX-NEXT: .Lllvm$6.$piclabel:
; LINUX-NEXT: popl %eax
; LINUX: addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$6.$piclabel], %eax
; LINUX: leal dst6@GOTOFF(%eax), %ecx
; LINUX: movl %ecx, ptr6@GOTOFF(%eax)
; LINUX: movl src6@GOTOFF(%eax), %ecx
; LINUX: movl %ecx, dst6@GOTOFF(%eax)
; LINUX: ret
}