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| author | Richard Sandiford <richard.sandiford@arm.com> | 2015-08-13 20:22:34 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2015-08-13 20:22:34 +0000 |
| commit | 9016329382f7824f7a9f5b7198ff47327797bbdf (patch) | |
| tree | 81a554cdea6f0fb537937af65669b60659e112c9 | |
| parent | c4f855e939f4d5ec5f0689148416c4e5a9c65f12 (diff) | |
| download | gcc-9016329382f7824f7a9f5b7198ff47327797bbdf.zip gcc-9016329382f7824f7a9f5b7198ff47327797bbdf.tar.gz gcc-9016329382f7824f7a9f5b7198ff47327797bbdf.tar.bz2 | |
re PR middle-end/55035 (reload1.c:3766:41: error: ‘orig_dup[0]’ may be used uninitialized in this function (for fr30, microblaze, moxie, rl78))
gcc/
PR bootstrap/55035
* reload1.c (elimination_costs_in_insn): Make it obvious to the
compiler that the n_dups and n_operands loop bounds are invariant.
From-SVN: r226874
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/reload1.c | 12 |
2 files changed, 13 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f3262e5..b8568bc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2015-08-13 Richard Sandiford <richard.sandiford@arm.com> + + PR bootstrap/55035 + * reload1.c (elimination_costs_in_insn): Make it obvious to the + compiler that the n_dups and n_operands loop bounds are invariant. + 2015-08-13 Kyrylo Tkachov <kyrylo.tkachov@arm.com> * ifcvt.c (noce_try_store_flag_constants): Handle PLUS-immediate diff --git a/gcc/reload1.c b/gcc/reload1.c index ce06e06..ad243e3 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -3708,10 +3708,12 @@ elimination_costs_in_insn (rtx_insn *insn) /* Eliminate all eliminable registers occurring in operands that can be handled by reload. */ extract_insn (insn); - for (i = 0; i < recog_data.n_dups; i++) + int n_dups = recog_data.n_dups; + for (i = 0; i < n_dups; i++) orig_dup[i] = *recog_data.dup_loc[i]; - for (i = 0; i < recog_data.n_operands; i++) + int n_operands = recog_data.n_operands; + for (i = 0; i < n_operands; i++) { orig_operand[i] = recog_data.operand[i]; @@ -3756,7 +3758,7 @@ elimination_costs_in_insn (rtx_insn *insn) } } - for (i = 0; i < recog_data.n_dups; i++) + for (i = 0; i < n_dups; i++) *recog_data.dup_loc[i] = *recog_data.operand_loc[(int) recog_data.dup_num[i]]; @@ -3764,9 +3766,9 @@ elimination_costs_in_insn (rtx_insn *insn) check_eliminable_occurrences (old_body); /* Restore the old body. */ - for (i = 0; i < recog_data.n_operands; i++) + for (i = 0; i < n_operands; i++) *recog_data.operand_loc[i] = orig_operand[i]; - for (i = 0; i < recog_data.n_dups; i++) + for (i = 0; i < n_dups; i++) *recog_data.dup_loc[i] = orig_dup[i]; /* Update all elimination pairs to reflect the status after the current |