| commit b0cf3ab7a69b878a4335d21a347b56e4b0ca0b7b |
| Author: Sergei Trofimovich <slyfox@gentoo.org> |
| Date: Mon Apr 14 19:06:24 2014 +0300 |
| |
| compiler/cmm/PprC.hs: constify local string literals |
| |
| Consider one-line module |
| module B (v) where v = "hello" |
| in -fvia-C mode it generates code like |
| static char gibberish_str[] = "hello"; |
| |
| It uselessly eats data section (precious resource on ia64!). |
| The patch switches genrator to emit: |
| static const char gibberish_str[] = "hello"; |
| |
| Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> |
| |
| diff --git a/compiler/cmm/PprC.hs b/compiler/cmm/PprC.hs |
| index 2398981..fdb578d 100644 |
| --- a/compiler/cmm/PprC.hs |
| +++ b/compiler/cmm/PprC.hs |
| @@ -112,6 +112,12 @@ pprTop (CmmProc infos clbl _ graph) = |
| |
| -- We only handle (a) arrays of word-sized things and (b) strings. |
| |
| +pprTop (CmmData (Section ReadOnlyData _) (Statics lbl [CmmString str])) = |
| + hcat [ |
| + pprLocalness lbl, ptext (sLit "const char "), ppr lbl, |
| + ptext (sLit "[] = "), pprStringInCStyle str, semi |
| + ] |
| + |
| pprTop (CmmData _section (Statics lbl [CmmString str])) = |
| hcat [ |
| pprLocalness lbl, ptext (sLit "char "), ppr lbl, |
