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

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/98091a84b20320eb639af91ac853f886dd27c60c

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

commit 98091a84b20320eb639af91ac853f886dd27c60c
Author: David Terei <[email protected]>
Date:   Tue Nov 22 12:30:52 2011 -0800

    Add '-dno-llvm-mangler' flag for debugging purposes

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

 compiler/main/DriverPipeline.hs |   10 ++++++++--
 compiler/main/DynFlags.hs       |    2 ++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/compiler/main/DriverPipeline.hs b/compiler/main/DriverPipeline.hs
index b378cfe..9851ce1 100644
--- a/compiler/main/DriverPipeline.hs
+++ b/compiler/main/DriverPipeline.hs
@@ -1338,7 +1338,13 @@ runPhase LlvmLlc input_fn dflags
                | not opt_Static = "dynamic-no-pic"
                | otherwise      = "static"
 
-    output_fn <- phaseOutputFilename LlvmMangle
+    -- hidden debugging flag '-dno-llvm-mangler' to skip mangling
+    let next_phase = case dopt Opt_NoLlvmMangler dflags of
+                         False                            -> LlvmMangle
+                         True | dopt Opt_SplitObjs dflags -> Splitter
+                         True                             -> As
+                        
+    output_fn <- phaseOutputFilename next_phase
 
     io $ SysTools.runLlvmLlc dflags
                 ([ SysTools.Option (llvmOpts !! opt_lvl),
@@ -1348,7 +1354,7 @@ runPhase LlvmLlc input_fn dflags
                 ++ map SysTools.Option lc_opts
                 ++ map SysTools.Option fpOpts)
 
-    return (LlvmMangle, output_fn)
+    return (next_phase, output_fn)
   where
         -- Bug in LLVM at O3 on OSX.
         llvmOpts = if platformOS (targetPlatform dflags) == OSDarwin
diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs
index c6f886e..4eb6dc9 100644
--- a/compiler/main/DynFlags.hs
+++ b/compiler/main/DynFlags.hs
@@ -220,6 +220,7 @@ data DynFlag
    | Opt_DoStgLinting
    | Opt_DoCmmLinting
    | Opt_DoAsmLinting
+   | Opt_NoLlvmMangler
 
    | Opt_WarnIsError                    -- -Werror; makes warnings fatal
 
@@ -1573,6 +1574,7 @@ dynamic_flags = [
   , Flag "dshow-passes"            (NoArg (do forceRecompile
                                               setVerbosity $ Just 2))
   , Flag "dfaststring-stats"       (NoArg (setDynFlag Opt_D_faststring_stats))
+  , Flag "dno-llvm-mangler"        (NoArg (setDynFlag Opt_NoLlvmMangler))
 
         ------ Machine dependant (-m<blah>) stuff ---------------------------
 



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