38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; RUN: llc -O0 -mtriple=i386-unknown-linux-gnu -relocation-model=pic < %s | FileCheck %s
|
|
|
|
; Unbind the ebx with GOT address in regcall calling convention, or the following
|
|
; case will failed in register allocation by no register can be used.
|
|
|
|
;#define REGCALL __attribute__((regcall))
|
|
;int REGCALL func (int i1, int i2, int i3, int i4, int i5);
|
|
;int (REGCALL *fptr) (int, int, int, int, int) = func;
|
|
;int test() {
|
|
; return fptr(1,2,3,4,5);
|
|
;}
|
|
|
|
@fptr = global i32 (i32, i32, i32, i32, i32)* @__regcall3__func, align 4
|
|
|
|
declare x86_regcallcc i32 @__regcall3__func(i32 inreg, i32 inreg, i32 inreg, i32 inreg, i32 inreg)
|
|
|
|
; Function Attrs: noinline nounwind optnone
|
|
define i32 @test() {
|
|
; CHECK-LABEL: test:
|
|
; CHECK: .L0$pb:
|
|
; CHECK-NEXT: popl %eax
|
|
; CHECK: .Ltmp0:
|
|
; CHECK-NEXT: addl $_GLOBAL_OFFSET_TABLE_+(.Ltmp0-.L0$pb), %eax
|
|
; CHECK-NEXT: movl fptr@GOT(%eax), %eax
|
|
; CHECK-NEXT: movl (%eax), %ebx
|
|
; CHECK-NEXT: movl $1, %eax
|
|
; CHECK-NEXT: movl $2, %ecx
|
|
; CHECK-NEXT: movl $3, %edx
|
|
; CHECK-NEXT: movl $4, %edi
|
|
; CHECK-NEXT: movl $5, %esi
|
|
; CHECK-NEXT: calll *%ebx
|
|
|
|
entry:
|
|
%0 = load i32 (i32, i32, i32, i32, i32)*, i32 (i32, i32, i32, i32, i32)** @fptr, align 4
|
|
%call = call x86_regcallcc i32 %0(i32 inreg 1, i32 inreg 2, i32 inreg 3, i32 inreg 4, i32 inreg 5)
|
|
ret i32 %call
|
|
}
|