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| author | Jakub Jelinek <jakub@redhat.com> | 2010-01-27 16:14:09 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-01-27 16:14:09 +0100 |
| commit | 9a78eb7197d02a89c12859159f9e0c32c740701b (patch) | |
| tree | 2d07ac6d875e996a00ace0437a46fd952ace9e91 /gcc | |
| parent | e8d8f497d1c598511957962a9d336f24653377c7 (diff) | |
| download | gcc-9a78eb7197d02a89c12859159f9e0c32c740701b.zip gcc-9a78eb7197d02a89c12859159f9e0c32c740701b.tar.gz gcc-9a78eb7197d02a89c12859159f9e0c32c740701b.tar.bz2 | |
rs6000.c (TARGET_DELEGITIMIZE_ADDRESS): Redefine.
* config/rs6000/rs6000.c (TARGET_DELEGITIMIZE_ADDRESS): Redefine.
(rs6000_delegitimize_address): New function.
From-SVN: r156289
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 39 |
2 files changed, 42 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 36ee690..290b354 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2010-01-27 Jakub Jelinek <jakub@redhat.com> + * config/rs6000/rs6000.c (TARGET_DELEGITIMIZE_ADDRESS): Redefine. + (rs6000_delegitimize_address): New function. + * config/s390/s390.c (s390_delegitimize_address): Call delegitimize_mem_from_attrs. diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 639e71f..ee4eff6 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -1059,6 +1059,7 @@ static rtx rs6000_legitimize_address (rtx, rtx, enum machine_mode); static rtx rs6000_debug_legitimize_address (rtx, rtx, enum machine_mode); static rtx rs6000_legitimize_tls_address (rtx, enum tls_model); static void rs6000_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED; +static rtx rs6000_delegitimize_address (rtx); static rtx rs6000_tls_get_addr (void); static rtx rs6000_got_sym (void); static int rs6000_tls_symbol_ref_1 (rtx *, void *); @@ -1326,6 +1327,9 @@ static const struct attribute_spec rs6000_attribute_table[] = #undef TARGET_CANNOT_FORCE_CONST_MEM #define TARGET_CANNOT_FORCE_CONST_MEM rs6000_tls_referenced_p +#undef TARGET_DELEGITIMIZE_ADDRESS +#define TARGET_DELEGITIMIZE_ADDRESS rs6000_delegitimize_address + #undef TARGET_ASM_FUNCTION_PROLOGUE #define TARGET_ASM_FUNCTION_PROLOGUE rs6000_output_function_prologue #undef TARGET_ASM_FUNCTION_EPILOGUE @@ -5262,6 +5266,41 @@ rs6000_output_dwarf_dtprel (FILE *file, int size, rtx x) fputs ("@dtprel+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 +rs6000_delegitimize_address (rtx orig_x) +{ + rtx x, y; + + orig_x = delegitimize_mem_from_attrs (orig_x); + x = orig_x; + if (MEM_P (x)) + x = XEXP (x, 0); + + if (GET_CODE (x) == PLUS + && GET_CODE (XEXP (x, 1)) == CONST + && GET_CODE (XEXP (x, 0)) == REG + && REGNO (XEXP (x, 0)) == TOC_REGISTER) + { + y = XEXP (XEXP (x, 1), 0); + if (GET_CODE (y) == UNSPEC + && XINT (y, 1) == UNSPEC_TOCREL) + { + y = XVECEXP (y, 0, 0); + if (!MEM_P (orig_x)) + return y; + else + return replace_equiv_address_nv (orig_x, y); + } + return orig_x; + } + + return orig_x; +} + /* Construct the SYMBOL_REF for the tls_get_addr function. */ static GTY(()) rtx rs6000_tls_symbol; |