From 4805aa90e1f197a8cccd8734ad1b754fa35d0335 Mon Sep 17 00:00:00 2001 From: danglin Date: Sat, 23 Aug 2014 15:56:07 +0000 Subject: [PATCH] PR target/62038 * config/pa/pa.c (pa_output_function_epilogue): Don't set last_address when the current function is a thunk. (pa_asm_output_mi_thunk): When we don't have named sections or they are not being used, check that thunk can reach the stub table with a short branch. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214397 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 9 +++++++++ gcc/config/pa/pa.c | 18 ++++++++++++------ 2 files changed, 21 insertions(+), 6 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cf2e6b82a03..d01509ab450 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2014-08-23 John David Anglin + + PR target/62038 + * config/pa/pa.c (pa_output_function_epilogue): Don't set + last_address when the current function is a thunk. + (pa_asm_output_mi_thunk): When we don't have named sections or they + are not being used, check that thunk can reach the stub table with a + short branch. + 2014-08-23 David Malcolm * web.c (union_match_dups): Strengthen param "insn" from rtx to diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c index d47d5c832c5..ad0cca34f71 100644 --- a/gcc/config/pa/pa.c +++ b/gcc/config/pa/pa.c @@ -4137,8 +4137,7 @@ static void pa_output_function_epilogue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) { rtx insn = get_last_insn (); - - last_address = 0; + bool extra_nop; /* pa_expand_epilogue does the dirty work now. We just need to output the assembler directives which denote the end @@ -4162,8 +4161,10 @@ pa_output_function_epilogue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) if (insn && CALL_P (insn)) { fputs ("\tnop\n", file); - last_address += 4; + extra_nop = true; } + else + extra_nop = false; fputs ("\t.EXIT\n\t.PROCEND\n", file); @@ -4176,12 +4177,13 @@ pa_output_function_epilogue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) cfun->machine->in_nsubspa = 2; } - /* Thunks do their own accounting. */ + /* Thunks do their own insn accounting. */ if (cfun->is_thunk) return; if (INSN_ADDRESSES_SET_P ()) { + last_address = extra_nop ? 4 : 0; insn = get_last_nonnote_insn (); last_address += INSN_ADDRESSES (INSN_UID (insn)); if (INSN_P (insn)) @@ -8275,12 +8277,16 @@ pa_asm_output_mi_thunk (FILE *file, tree thunk_fndecl, HOST_WIDE_INT delta, || ((DECL_SECTION_NAME (thunk_fndecl) == DECL_SECTION_NAME (function)) && last_address < 262132))) + /* In this case, we need to be able to reach the start of + the stub table even though the function is likely closer + and can be jumped to directly. */ || (targetm_common.have_named_sections && DECL_SECTION_NAME (thunk_fndecl) == NULL && DECL_SECTION_NAME (function) == NULL - && last_address < 262132) + && total_code_bytes < MAX_PCREL17F_OFFSET) + /* Likewise. */ || (!targetm_common.have_named_sections - && last_address < 262132)))) + && total_code_bytes < MAX_PCREL17F_OFFSET)))) { if (!val_14) output_asm_insn ("addil L'%2,%%r26", xoperands); -- 2.11.4.GIT