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| author | Alexander Monakov <amonakov@ispras.ru> | 2018-05-23 18:01:28 +0300 |
|---|---|---|
| committer | Alexander Monakov <amonakov@gcc.gnu.org> | 2018-05-23 18:01:28 +0300 |
| commit | 3f13154553f8546ac3b2154440bca0cf556d57a7 (patch) | |
| tree | 9cf283d5196a5658f09a6f4718bbfcf4b6cb5cf6 /gcc/df-scan.c | |
| parent | 8851a51161fa471eaaa87c4d950b250178703008 (diff) | |
| download | gcc-3f13154553f8546ac3b2154440bca0cf556d57a7.zip gcc-3f13154553f8546ac3b2154440bca0cf556d57a7.tar.gz gcc-3f13154553f8546ac3b2154440bca0cf556d57a7.tar.bz2 | |
df-scan: remove ad-hoc handling of global regs in asms
PR rtl-optimization/79985
* df-scan.c (df_insn_refs_collect): Remove special case for
global registers and asm statements.
testsuite/
* gcc.dg/pr79985.c: New testcase.
From-SVN: r260613
Diffstat (limited to 'gcc/df-scan.c')
| -rw-r--r-- | gcc/df-scan.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/gcc/df-scan.c b/gcc/df-scan.c index 95e1e0d..cbb08fc 100644 --- a/gcc/df-scan.c +++ b/gcc/df-scan.c @@ -3207,17 +3207,6 @@ df_insn_refs_collect (struct df_collection_rec *collection_rec, if (CALL_P (insn_info->insn)) df_get_call_refs (collection_rec, bb, insn_info, flags); - if (asm_noperands (PATTERN (insn_info->insn)) >= 0) - for (unsigned i = 0; i < FIRST_PSEUDO_REGISTER; i++) - if (global_regs[i]) - { - /* As with calls, asm statements reference all global regs. */ - df_ref_record (DF_REF_BASE, collection_rec, regno_reg_rtx[i], - NULL, bb, insn_info, DF_REF_REG_USE, flags); - df_ref_record (DF_REF_BASE, collection_rec, regno_reg_rtx[i], - NULL, bb, insn_info, DF_REF_REG_DEF, flags); - } - /* Record other defs. These should be mostly for DF_REF_REGULAR, so that a qsort on the defs is unnecessary in most cases. */ df_defs_record (collection_rec, |