[commit: ghc] master: handle MO_Touch, and generate no code for it. (a1ebe37)

Repository : ssh://darcs.haskell.org//srv/darcs/ghc

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/a1ebe37d8394e35d0a29f21511626d0895db634a

>---------------------------------------------------------------

commit a1ebe37d8394e35d0a29f21511626d0895db634a
Author: Simon Marlow <[email protected]>
Date:   Mon Nov 12 14:01:22 2012 +0000

    handle MO_Touch, and generate no code for it.

>---------------------------------------------------------------

 compiler/llvmGen/LlvmCodeGen/CodeGen.hs |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/compiler/llvmGen/LlvmCodeGen/CodeGen.hs b/compiler/llvmGen/LlvmCodeGen/CodeGen.hs
index ef9fc2b..fd9d701 100644
--- a/compiler/llvmGen/LlvmCodeGen/CodeGen.hs
+++ b/compiler/llvmGen/LlvmCodeGen/CodeGen.hs
@@ -184,6 +184,9 @@ genCall env (PrimTarget MO_WriteBarrier) _ _
  | getLlvmVer env > 29 = barrier env
  | otherwise           = oldBarrier env
 
+genCall env (PrimTarget MO_Touch) _ _
+ = return (env, nilOL, [])
+
 -- Handle popcnt function specifically since GHC only really has i32 and i64
 -- types and things like Word8 are backed by an i32 and just present a logical
 -- i8 range. So we must handle conversions from i32 to i8 explicitly as LLVM