llvm-mirror/test/CodeGen/X86/byval-callee-cleanup.ll
Reid Kleckner 59aa68169a Revert "Don't count inreg params when mangling fastcall functions"
This reverts commit r214981.

I'm not sure what I was thinking when I wrote this. Testing with MSVC
shows that this function is mangled to '@f@8':
  int __fastcall f(int a, int b);

llvm-svn: 220492
2014-10-23 17:50:42 +00:00

28 lines
772 B
LLVM

; RUN: llc < %s -mtriple=i686-win32 | FileCheck %s
; Previously we would forget to align to stack slot alignment after placing a
; byval argument. Subsequent arguments would align themselves, but if it was
; the last argument, the argument size would not be a multiple of stack slot
; size. This resulted in retl $6 in callee-cleanup functions, as well as subtle
; varargs bugs.
%struct.Six = type { [6 x i8] }
define x86_stdcallcc void @f(%struct.Six* byval %a) {
ret void
}
; CHECK-LABEL: _f@8:
; CHECK: retl $8
define x86_thiscallcc void @g(i8* %this, %struct.Six* byval %a) {
ret void
}
; CHECK-LABEL: _g:
; CHECK: retl $8
define x86_fastcallcc void @h(i32 inreg %x, i32 inreg %y, %struct.Six* byval %a) {
ret void
}
; CHECK-LABEL: @h@16:
; CHECK: retl $8