| ; 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 ptr @__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 ptr, ptr @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 |
| } |