File: inalloca-regparm.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; RUN: llc -mtriple=i686-windows-msvc < %s -o /dev/null
; RUN: not --crash llc -mtriple=x86_64-windows-msvc %s -o /dev/null 2>&1 | FileCheck %s

; This will compile successfully on x86 but not x86_64, because %b will become a
; register parameter.

declare x86_thiscallcc i32 @f(i32 %a, ptr inalloca(i32) %b)
define void @g() {
  %b = alloca inalloca i32
  store i32 2, ptr %b
  call x86_thiscallcc i32 @f(i32 0, ptr inalloca(i32) %b)
  ret void
}

; CHECK: cannot use inalloca attribute on a register parameter