llvm-6502/test/CodeGen/X86/inalloca-stdcall.ll
Reid Kleckner c9fbc97e95 x86: Fix large model calls to __chkstk for dynamic allocas
In the large code model, we now put __chkstk in %r11 before calling it.

Refactor the code so that we only do this once. Simplify things by using
__chkstk_ms instead of __chkstk on cygming. We already use that symbol
in the prolog emission, and it simplifies our logic.

Second half of PR18582.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227519 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-29 23:58:04 +00:00

28 lines
705 B
LLVM

; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck %s
%Foo = type { i32, i32 }
declare x86_stdcallcc void @f(%Foo* inalloca %a)
declare x86_stdcallcc void @i(i32 %a)
define void @g() {
; CHECK-LABEL: _g:
%b = alloca inalloca %Foo
; CHECK: movl $8, %eax
; CHECK: calll __chkstk
; CHECK: movl %[[REG:[^,]*]], %esp
%f1 = getelementptr %Foo* %b, i32 0, i32 0
%f2 = getelementptr %Foo* %b, i32 0, i32 1
store i32 13, i32* %f1
store i32 42, i32* %f2
; CHECK: movl $13, (%[[REG]])
; CHECK: movl $42, 4(%[[REG]])
call x86_stdcallcc void @f(%Foo* inalloca %b)
; CHECK: calll _f@8
; CHECK-NOT: %esp
; CHECK: pushl
; CHECK: calll _i@4
call x86_stdcallcc void @i(i32 0)
ret void
}