2014-05-06 16:51:25 +00:00
|
|
|
; RUN: llc < %s -mtriple=arm-apple-darwin | FileCheck %s
|
|
|
|
|
; RUN: llc < %s -mtriple=arm-linux-gnueabi | FileCheck %s
|
|
|
|
|
|
|
|
|
|
define i32 @get_stack() nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
; CHECK-LABEL: get_stack:
|
|
|
|
|
; CHECK: mov r0, sp
|
|
|
|
|
%sp = call i32 @llvm.read_register.i32(metadata !0)
|
|
|
|
|
ret i32 %sp
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define void @set_stack(i32 %val) nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
; CHECK-LABEL: set_stack:
|
|
|
|
|
; CHECK: mov sp, r0
|
|
|
|
|
call void @llvm.write_register.i32(metadata !0, i32 %val)
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
declare i32 @llvm.read_register.i32(metadata) nounwind
|
|
|
|
|
declare void @llvm.write_register.i32(metadata, i32) nounwind
|
|
|
|
|
|
|
|
|
|
; register unsigned long current_stack_pointer asm("sp");
|
|
|
|
|
; CHECK-NOT: .asciz "sp"
|
IR: Make metadata typeless in assembly
Now that `Metadata` is typeless, reflect that in the assembly. These
are the matching assembly changes for the metadata/value split in
r223802.
- Only use the `metadata` type when referencing metadata from a call
intrinsic -- i.e., only when it's used as a `Value`.
- Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
when referencing it from call intrinsics.
So, assembly like this:
define @foo(i32 %v) {
call void @llvm.foo(metadata !{i32 %v}, metadata !0)
call void @llvm.foo(metadata !{i32 7}, metadata !0)
call void @llvm.foo(metadata !1, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{metadata !3}, metadata !0)
ret void, !bar !2
}
!0 = metadata !{metadata !2}
!1 = metadata !{i32* @global}
!2 = metadata !{metadata !3}
!3 = metadata !{}
turns into this:
define @foo(i32 %v) {
call void @llvm.foo(metadata i32 %v, metadata !0)
call void @llvm.foo(metadata i32 7, metadata !0)
call void @llvm.foo(metadata i32* @global, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{!3}, metadata !0)
ret void, !bar !2
}
!0 = !{!2}
!1 = !{i32* @global}
!2 = !{!3}
!3 = !{}
I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines). I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.
This is part of PR21532.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-15 19:07:53 +00:00
|
|
|
!0 = !{!"sp\00"}
|
