mirror of
				https://github.com/c64scene-ar/llvm-6502.git
				synced 2025-11-04 05:17:07 +00:00 
			
		
		
		
	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
		
	
		
			
				
	
	
		
			45 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
; RUN: opt < %s -analyze -block-freq | FileCheck %s
 | 
						|
 | 
						|
; CHECK-LABEL: Printing analysis {{.*}} for function 'loop_with_branch':
 | 
						|
; CHECK-NEXT: block-frequency-info: loop_with_branch
 | 
						|
define void @loop_with_branch(i32 %a) {
 | 
						|
; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
 | 
						|
entry:
 | 
						|
  %skip_loop = call i1 @foo0(i32 %a)
 | 
						|
  br i1 %skip_loop, label %skip, label %header, !prof !0
 | 
						|
 | 
						|
; CHECK-NEXT: skip: float = 0.25,
 | 
						|
skip:
 | 
						|
  br label %exit
 | 
						|
 | 
						|
; CHECK-NEXT: header: float = 4.5,
 | 
						|
header:
 | 
						|
  %i = phi i32 [ 0, %entry ], [ %i.next, %back ]
 | 
						|
  %i.next = add i32 %i, 1
 | 
						|
  %choose = call i2 @foo1(i32 %i)
 | 
						|
  switch i2 %choose, label %exit [ i2 0, label %left
 | 
						|
                                   i2 1, label %right ], !prof !1
 | 
						|
 | 
						|
; CHECK-NEXT: left: float = 1.5,
 | 
						|
left:
 | 
						|
  br label %back
 | 
						|
 | 
						|
; CHECK-NEXT: right: float = 2.25,
 | 
						|
right:
 | 
						|
  br label %back
 | 
						|
 | 
						|
; CHECK-NEXT: back: float = 3.75,
 | 
						|
back:
 | 
						|
  br label %header
 | 
						|
 | 
						|
; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
 | 
						|
exit:
 | 
						|
  ret void
 | 
						|
}
 | 
						|
 | 
						|
declare i1 @foo0(i32)
 | 
						|
declare i2 @foo1(i32)
 | 
						|
 | 
						|
!0 = !{!"branch_weights", i32 1, i32 3}
 | 
						|
!1 = !{!"branch_weights", i32 1, i32 2, i32 3}
 |