llvm/test/CodeGen/X86/win-smallparams.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; When we accept small parameters on Windows, make sure we do not assume they
; are zero or sign extended in memory or in registers.

; RUN: llc < %s -mtriple=x86_64-windows-msvc | FileCheck %s --check-prefix=WIN64
; RUN: llc < %s -mtriple=x86_64-windows-gnu | FileCheck %s --check-prefix=WIN64
; RUN: llc < %s -mtriple=i686-windows-msvc | FileCheck %s --check-prefix=WIN32-MSVC
; RUN: llc < %s -mtriple=i686-windows-gnu | FileCheck %s --check-prefix=WIN32-GNU

define void @call() {
; WIN64-LABEL: call:
; WIN64:       # %bb.0: # %entry
; WIN64-NEXT:    subq $56, %rsp
; WIN64-NEXT:    .seh_stackalloc 56
; WIN64-NEXT:    .seh_endprologue
; WIN64-NEXT:    movw $6, {{[0-9]+}}(%rsp)
; WIN64-NEXT:    movb $5, {{[0-9]+}}(%rsp)
; WIN64-NEXT:    movb $1, %cl
; WIN64-NEXT:    movw $2, %dx
; WIN64-NEXT:    movb $3, %r8b
; WIN64-NEXT:    movw $4, %r9w
; WIN64-NEXT:    callq manyargs
; WIN64-NEXT:    nop
; WIN64-NEXT:    .seh_startepilogue
; WIN64-NEXT:    addq $56, %rsp
; WIN64-NEXT:    .seh_endepilogue
; WIN64-NEXT:    retq
; WIN64-NEXT:    .seh_endproc
;
; WIN32-MSVC-LABEL: call:
; WIN32-MSVC:       # %bb.0: # %entry
; WIN32-MSVC-NEXT:    pushl $6
; WIN32-MSVC-NEXT:    pushl $5
; WIN32-MSVC-NEXT:    pushl $4
; WIN32-MSVC-NEXT:    pushl $3
; WIN32-MSVC-NEXT:    pushl $2
; WIN32-MSVC-NEXT:    pushl $1
; WIN32-MSVC-NEXT:    calll _manyargs
; WIN32-MSVC-NEXT:    addl $24, %esp
; WIN32-MSVC-NEXT:    retl
;
; WIN32-GNU-LABEL: call:
; WIN32-GNU:       # %bb.0: # %entry
; WIN32-GNU-NEXT:    pushl $6
; WIN32-GNU-NEXT:    .cfi_adjust_cfa_offset 4
; WIN32-GNU-NEXT:    pushl $5
; WIN32-GNU-NEXT:    .cfi_adjust_cfa_offset 4
; WIN32-GNU-NEXT:    pushl $4
; WIN32-GNU-NEXT:    .cfi_adjust_cfa_offset 4
; WIN32-GNU-NEXT:    pushl $3
; WIN32-GNU-NEXT:    .cfi_adjust_cfa_offset 4
; WIN32-GNU-NEXT:    pushl $2
; WIN32-GNU-NEXT:    .cfi_adjust_cfa_offset 4
; WIN32-GNU-NEXT:    pushl $1
; WIN32-GNU-NEXT:    .cfi_adjust_cfa_offset 4
; WIN32-GNU-NEXT:    calll _manyargs
; WIN32-GNU-NEXT:    addl $24, %esp
; WIN32-GNU-NEXT:    .cfi_adjust_cfa_offset -24
; WIN32-GNU-NEXT:    retl
entry:
  %rv = call i32 @manyargs(i8 1, i16 2, i8 3, i16 4, i8 5, i16 6)
  ret void
}

define i32 @manyargs(i8 %a, i16 %b, i8 %c, i16 %d, i8 %e, i16 %f) {
; WIN64-LABEL: manyargs:
; WIN64:       # %bb.0: # %entry
; WIN64-NEXT:    movzwl {{[0-9]+}}(%rsp), %r10d
; WIN64-NEXT:    movzbl {{[0-9]+}}(%rsp), %r11d
; WIN64-NEXT:    movsbl %cl, %eax
; WIN64-NEXT:    movswl %dx, %ecx
; WIN64-NEXT:    addl %eax, %ecx
; WIN64-NEXT:    movzbl %r8b, %edx
; WIN64-NEXT:    movzwl %r9w, %eax
; WIN64-NEXT:    addl %edx, %eax
; WIN64-NEXT:    addl %ecx, %eax
; WIN64-NEXT:    addl %r11d, %eax
; WIN64-NEXT:    addl %r10d, %eax
; WIN64-NEXT:    retq
;
; WIN32-MSVC-LABEL: manyargs:
; WIN32-MSVC:       # %bb.0: # %entry
; WIN32-MSVC-NEXT:    pushl %esi
; WIN32-MSVC-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
; WIN32-MSVC-NEXT:    movzbl {{[0-9]+}}(%esp), %ecx
; WIN32-MSVC-NEXT:    addl %eax, %ecx
; WIN32-MSVC-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
; WIN32-MSVC-NEXT:    movzbl {{[0-9]+}}(%esp), %edx
; WIN32-MSVC-NEXT:    addl %eax, %edx
; WIN32-MSVC-NEXT:    movswl {{[0-9]+}}(%esp), %esi
; WIN32-MSVC-NEXT:    movsbl {{[0-9]+}}(%esp), %eax
; WIN32-MSVC-NEXT:    addl %esi, %eax
; WIN32-MSVC-NEXT:    addl %edx, %eax
; WIN32-MSVC-NEXT:    addl %ecx, %eax
; WIN32-MSVC-NEXT:    popl %esi
; WIN32-MSVC-NEXT:    retl
;
; WIN32-GNU-LABEL: manyargs:
; WIN32-GNU:       # %bb.0: # %entry
; WIN32-GNU-NEXT:    pushl %esi
; WIN32-GNU-NEXT:    .cfi_def_cfa_offset 8
; WIN32-GNU-NEXT:    .cfi_offset %esi, -8
; WIN32-GNU-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
; WIN32-GNU-NEXT:    movzbl {{[0-9]+}}(%esp), %ecx
; WIN32-GNU-NEXT:    addl %eax, %ecx
; WIN32-GNU-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
; WIN32-GNU-NEXT:    movzbl {{[0-9]+}}(%esp), %edx
; WIN32-GNU-NEXT:    addl %eax, %edx
; WIN32-GNU-NEXT:    movswl {{[0-9]+}}(%esp), %esi
; WIN32-GNU-NEXT:    movsbl {{[0-9]+}}(%esp), %eax
; WIN32-GNU-NEXT:    addl %esi, %eax
; WIN32-GNU-NEXT:    addl %edx, %eax
; WIN32-GNU-NEXT:    addl %ecx, %eax
; WIN32-GNU-NEXT:    popl %esi
; WIN32-GNU-NEXT:    retl
entry:
  %aa = sext i8 %a to i32
  %bb = sext i16 %b to i32
  %cc = zext i8 %c to i32
  %dd = zext i16 %d to i32
  %ee = zext i8 %e to i32
  %ff = zext i16 %f to i32
  %t0 = add i32 %aa, %bb
  %t1 = add i32 %t0, %cc
  %t2 = add i32 %t1, %dd
  %t3 = add i32 %t2, %ee
  %t4 = add i32 %t3, %ff
  ret i32 %t4
}