llvm-6502/2008-12-29-Constant.ll at f08bf1193c390bfe4b25d8533f146742d0277d06 - llvm-6502 - Applefritter: Git

6502/llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-21 00:32:23 +00:00

Duncan Sands 516ec62bfe Allow readnone functions to read (and write!) global

constants, since doing so is irrelevant for aliasing
purposes.  While this doesn't increase the total number
of functions marked readonly or readnone in MultiSource/
Applications (3089), it does result in 12 functions being
marked readnone rather than readonly.
Before:
  readnone: 820
  readonly: 2269
After:
  readnone: 832
  readonly: 2257


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61469 91177308-0d34-0410-b5e6-96231b3b80d8

2008-12-29 11:34:09 +00:00

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 ; RUN: llvm-as < %s | opt -addreadattrs | llvm-dis | grep readnone
 @s = external constant i8		; <i8*> [#uses=1]
 define i8 @f() {
 	%tmp = load i8* @s		; <i8> [#uses=1]
 	ret i8 %tmp
 }