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| author | Jakub Jelinek <jakub@redhat.com> | 2002-04-16 08:09:39 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2002-04-16 08:09:39 +0200 |
| commit | a9772b60f3716f6f82d695bd0fc0300b87ca0b89 (patch) | |
| tree | b073fded453a1e3b898f1d4fb78e2e1cb3506b84 | |
| parent | 0f2680051d915c63fa287f9cbdcf666d62b836af (diff) | |
| download | gcc-a9772b60f3716f6f82d695bd0fc0300b87ca0b89.zip gcc-a9772b60f3716f6f82d695bd0fc0300b87ca0b89.tar.gz gcc-a9772b60f3716f6f82d695bd0fc0300b87ca0b89.tar.bz2 | |
re PR middle-end/6279 (gcc-3.1 miscompiles qmake on IA-64)
PR middle-end/6279
* expr.c (store_expr): Don't copy if DECL_RTL (exp) == target.
* expr.c (safe_from_p): Cleanup: use DECL_RTL_IF_SET.
From-SVN: r52356
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/expr.c | 9 |
2 files changed, 14 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8362777..6fc0b24 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2002-04-16 Jakub Jelinek <jakub@redhat.com> + + PR middle-end/6279 + * expr.c (store_expr): Don't copy if DECL_RTL (exp) == target. + + * expr.c (safe_from_p): Cleanup: use DECL_RTL_IF_SET. + 2002-04-15 Richard Henderson <rth@redhat.com> * config/mips/abi64.h (SUBTARGET_CONDITIONAL_REGISTER_USAGE): Set @@ -4125,7 +4125,12 @@ store_expr (exp, target, want_value) || (temp != target && (side_effects_p (temp) || side_effects_p (target)))) && TREE_CODE (exp) != ERROR_MARK - && ! dont_store_target) + && ! dont_store_target + /* If store_expr stores a DECL whose DECL_RTL(exp) == TARGET, + but TARGET is not valid memory reference, TEMP will differ + from TARGET although it is really the same location. */ + && (TREE_CODE_CLASS (TREE_CODE (exp)) != 'd' + || target != DECL_RTL_IF_SET (exp))) { target = protect_from_queue (target, 1); if (GET_MODE (temp) != GET_MODE (target) @@ -5598,7 +5603,7 @@ safe_from_p (x, exp, top_p) switch (TREE_CODE_CLASS (TREE_CODE (exp))) { case 'd': - exp_rtl = DECL_RTL_SET_P (exp) ? DECL_RTL (exp) : NULL_RTX; + exp_rtl = DECL_RTL_IF_SET (exp); break; case 'c': |