diff options
| author | Martin Jambor <mjambor@suse.cz> | 2010-03-22 13:28:49 +0000 |
|---|---|---|
| committer | Martin Jambor <mjambor@suse.cz> | 2010-03-22 13:28:49 +0000 |
| commit | eac37098c4f9285aac16c9f57cabe7006e97c358 (patch) | |
| tree | 3ce0f39972dbad8c26710f7b69a879937c78b546 /gcc/config/m68k/m68k.c | |
| parent | d934ae2797f749acea52087c64886bd42ff65fbc (diff) | |
Merge from trunk, revisions:
157095-157096, 157100-157102, 157105, 157107, 157109-157114,
157117-157125, 157128, 157131-157146, 157148-157149, 157151-157154,
157157-157159, 157161, 157163-157169, 157172-157173, 157175-157181,
157184-157193, 157196-157207, 157213-157215, 157217-157218,
157224-157226, 157228-157229, 157232-157233, 157236, 157239-157240,
157244-157246, 157252, 157257-157259, 157262-157264, 157269,
157271-157273, 157276-157292, 157294, 157297-157300, 157303, 157305,
157310-157311, 157313-157317, 157325, 157328, 157331, 157334,
157337, 157339-157340, 157363-157366
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/pretty-ipa@157626 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/m68k/m68k.c')
| -rw-r--r-- | gcc/config/m68k/m68k.c | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c index 8db98fc4f46..faee39e6723 100644 --- a/gcc/config/m68k/m68k.c +++ b/gcc/config/m68k/m68k.c @@ -1,6 +1,6 @@ /* Subroutines for insn-output.c for Motorola 68000 family. Copyright (C) 1987, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009 + 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. This file is part of GCC. @@ -154,6 +154,7 @@ static bool m68k_return_in_memory (const_tree, const_tree); #endif static void m68k_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED; static void m68k_trampoline_init (rtx, tree, rtx); +static rtx m68k_delegitimize_address (rtx); /* Specify the identification number of the library being built */ @@ -271,6 +272,9 @@ const char *m68k_library_id_string = "_current_shared_library_a5_offset_"; #undef TARGET_TRAMPOLINE_INIT #define TARGET_TRAMPOLINE_INIT m68k_trampoline_init +#undef TARGET_DELEGITIMIZE_ADDRESS +#define TARGET_DELEGITIMIZE_ADDRESS m68k_delegitimize_address + static const struct attribute_spec m68k_attribute_table[] = { /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ @@ -4616,6 +4620,57 @@ m68k_output_dwarf_dtprel (FILE *file, int size, rtx x) fputs ("@TLSLDO+0x8000", file); } +/* In the name of slightly smaller debug output, and to cater to + general assembler lossage, recognize various UNSPEC sequences + and turn them back into a direct symbol reference. */ + +static rtx +m68k_delegitimize_address (rtx x) +{ + rtx orig_x = delegitimize_mem_from_attrs (x); + rtx y; + rtx addend = NULL_RTX; + rtx result; + + x = orig_x; + if (MEM_P (x)) + x = XEXP (x, 0); + + if (GET_CODE (x) == PLUS + && GET_CODE (XEXP (x, 1)) == CONST + && REG_P (XEXP (x, 0)) + && REGNO (XEXP (x, 0)) == PIC_REG) + { + y = x = XEXP (XEXP (x, 1), 0); + + /* Handle an addend. */ + if ((GET_CODE (x) == PLUS || GET_CODE (x) == MINUS) + && CONST_INT_P (XEXP (x, 1))) + { + addend = XEXP (x, 1); + x = XEXP (x, 0); + } + + if (GET_CODE (x) == UNSPEC + && (XINT (x, 1) == UNSPEC_RELOC16 + || XINT (x, 1) == UNSPEC_RELOC32)) + { + result = XVECEXP (x, 0, 0); + if (addend) + { + if (GET_CODE (y) == PLUS) + result = gen_rtx_PLUS (Pmode, result, addend); + else + result = gen_rtx_MINUS (Pmode, result, addend); + result = gen_rtx_CONST (Pmode, result); + } + return result; + } + } + + return orig_x; +} + /* A C compound statement to output to stdio stream STREAM the assembler syntax for an instruction operand that is a memory |