diff options
| author | Bernd Schmidt <bernds@redhat.co.uk> | 2000-11-10 11:43:43 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2000-11-10 11:43:43 +0000 |
| commit | 0c478921bdadb374b8c4b062c4812c659564b9cb (patch) | |
| tree | c859b1859843b9c3c1592f38690e2b4e0ef02343 | |
| parent | 6fb85418122c9a3bde93c7db8e185c2d0f53413a (diff) | |
| download | gcc-0c478921bdadb374b8c4b062c4812c659564b9cb.zip gcc-0c478921bdadb374b8c4b062c4812c659564b9cb.tar.gz gcc-0c478921bdadb374b8c4b062c4812c659564b9cb.tar.bz2 | |
Fix ia64 float extend splitter crash.
From-SVN: r37365
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64.md | 27 | ||||
| -rw-r--r-- | gcc/toplev.c | 2 |
3 files changed, 30 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4ff995e..9625f27 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -3,6 +3,11 @@ * regrename.c (build_def_use): Mark contents of REG_INC notes as needing replacement. + * config/ia64/ia64.md (extendsfdf2, extendsftf2, extenddftf2): Emit + a no-op move if regs are equal. + * toplev.c (rest_of_compilation): Do the noop moves elimination pass + when calling jump after post-reload splitting. + 2000-11-09 Jan van Male <jan.vanmale@fenk.wau.nl> * c-tree.texi: Fix typos. diff --git a/gcc/config/ia64/ia64.md b/gcc/config/ia64/ia64.md index 5adc646..77418f2 100644 --- a/gcc/config/ia64/ia64.md +++ b/gcc/config/ia64/ia64.md @@ -1073,7 +1073,14 @@ getf.d %0 = %1" "reload_completed" [(set (match_dup 0) (float_extend:DF (match_dup 1)))] - "if (true_regnum (operands[0]) == true_regnum (operands[1])) DONE;" + " +{ + if (true_regnum (operands[0]) == true_regnum (operands[1])) + { + emit_insn (gen_movdi (pic_offset_table_rtx, pic_offset_table_rtx)); + DONE; + } +}" [(set_attr "type" "F,F,M,M,M,M")]) (define_insn_and_split "extendsftf2" @@ -1089,7 +1096,14 @@ stfe %0 = %1%P0" "reload_completed" [(set (match_dup 0) (float_extend:TF (match_dup 1)))] - "if (true_regnum (operands[0]) == true_regnum (operands[1])) DONE;" + " +{ + if (true_regnum (operands[0]) == true_regnum (operands[1])) + { + emit_insn (gen_movdi (pic_offset_table_rtx, pic_offset_table_rtx)); + DONE; + } +}" [(set_attr "type" "F,F,M,M,M")]) (define_insn_and_split "extenddftf2" @@ -1105,7 +1119,14 @@ stfe %0 = %1%P0" "reload_completed" [(set (match_dup 0) (float_extend:TF (match_dup 1)))] - "if (true_regnum (operands[0]) == true_regnum (operands[1])) DONE;" + " +{ + if (true_regnum (operands[0]) == true_regnum (operands[1])) + { + emit_insn (gen_movdi (pic_offset_table_rtx, pic_offset_table_rtx)); + DONE; + } +}" [(set_attr "type" "F,F,M,M,M")]) (define_insn "truncdfsf2" diff --git a/gcc/toplev.c b/gcc/toplev.c index aa8c4ba..1f46f35 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -3484,7 +3484,7 @@ rest_of_compilation (decl) open_dump_file (DFI_flow2, decl); jump_optimize (insns, !JUMP_CROSS_JUMP, - !JUMP_NOOP_MOVES, !JUMP_AFTER_REGSCAN); + JUMP_NOOP_MOVES, !JUMP_AFTER_REGSCAN); find_basic_blocks (insns, max_reg_num (), rtl_dump_file); /* On some machines, the prologue and epilogue code, or parts thereof, |