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| author | Richard Earnshaw <rearnsha@arm.com> | 2004-08-20 09:59:34 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2004-08-20 09:59:34 +0000 |
| commit | c4cdb8e1d07a732cbe0ed4ff923cefd427cb5285 (patch) | |
| tree | 03fa69a8b0313afedcb97e7ad2b8a70e0bf95f3e /gcc | |
| parent | 07c6ee1bd95bb3b64c7b1c0d4acc94d0c5627340 (diff) | |
| download | gcc-c4cdb8e1d07a732cbe0ed4ff923cefd427cb5285.zip gcc-c4cdb8e1d07a732cbe0ed4ff923cefd427cb5285.tar.gz gcc-c4cdb8e1d07a732cbe0ed4ff923cefd427cb5285.tar.bz2 | |
postreload.c (reload_cse_move2add): Allow any condjump...
* postreload.c (reload_cse_move2add): Allow any condjump, but check
that the implicit set isn't clobbered in the jump insn.
From-SVN: r86308
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/postreload.c | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5b4668e..cbdecb6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-08-20 Richard Earnshaw <rearnsha@arm.com> + + * postreload.c (reload_cse_move2add): Allow any condjump, but check + that the implicit set isn't clobbered in the jump insn. + 2004-08-19 Mark Mitchell <mark@codesourcery.com> * defaults.h (TARGET_LIBGCC_LIBFUNCS): Remove. diff --git a/gcc/postreload.c b/gcc/postreload.c index 3b15118..20d4a4f 100644 --- a/gcc/postreload.c +++ b/gcc/postreload.c @@ -1375,13 +1375,14 @@ reload_cse_move2add (rtx first) /* If INSN is a conditional branch, we try to extract an implicit set out of it. */ - if (any_condjump_p (insn) && onlyjump_p (insn)) + if (any_condjump_p (insn)) { rtx cnd = fis_get_condition (insn); if (cnd != NULL_RTX && GET_CODE (cnd) == NE && REG_P (XEXP (cnd, 0)) + && !reg_set_p (XEXP (cnd, 0), insn) /* The following two checks, which are also in move2add_note_store, are intended to reduce the number of calls to gen_rtx_SET to avoid memory |