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| author | Richard Sandiford <rsandifo@gcc.gnu.org> | 2004-03-16 09:22:36 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2004-03-16 09:22:36 +0000 |
| commit | 4e7edcca305b9121c314ca5762dc45e426c20065 (patch) | |
| tree | aa18b72a10946f018b0da63596169d5b363804bb /gcc | |
| parent | 3704aae954e07db1b797e5cc1750bcf4f2a88cc1 (diff) | |
| download | gcc-4e7edcca305b9121c314ca5762dc45e426c20065.zip gcc-4e7edcca305b9121c314ca5762dc45e426c20065.tar.gz gcc-4e7edcca305b9121c314ca5762dc45e426c20065.tar.bz2 | |
re PR target/14599 (ieee/20000320-1.c fails for -mips16 using -O2 and above)
PR target/14599
* config/mips/mips.md (UNSPEC_GP): New constant.
* config/mips/mips.c (CONST_GP_P): Expect the CONST to contain
an UNSPEC instead of (reg $gp).
(mips16_gp_pseudo_reg): Change accordingly.
(print_operand): Print $gp directly when handling CONST_GP_P.
From-SVN: r79527
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 13 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 16 | ||||
| -rw-r--r-- | gcc/config/mips/mips.md | 1 |
3 files changed, 21 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b5f6e95..e56a4a9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,9 +1,18 @@ -2004-03-16 Richard Zidlicky <rz@linux-m68k.org> +2004-03-16 Richard Sandiford <rsandifo@redhat.com> + + PR target/14599 + * config/mips/mips.md (UNSPEC_GP): New constant. + * config/mips/mips.c (CONST_GP_P): Expect the CONST to contain + an UNSPEC instead of (reg $gp). + (mips16_gp_pseudo_reg): Change accordingly. + (print_operand): Print $gp directly when handling CONST_GP_P. + +2004-03-16 Richard Zidlicky <rz@linux-m68k.org> * config.gcc, config/m68k/linux.h: Implement with-cpu for m68k-linux. * longlong.h: Make code 68060 clean when compiling for m68060. -2004-03-16 Richard Zidlicky <rz@linux-m68k.org> +2004-03-16 Richard Zidlicky <rz@linux-m68k.org> * config/m68k/m68k.md: Fix constraints for bitfield instructions. * doc/md.texi: Clarify description of "i" constraint. diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index bedf920..c11a659 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -87,10 +87,12 @@ enum internal_test { #define UNSPEC_ADDRESS_TYPE(X) \ ((enum mips_symbol_type) (XINT (X, 1) - UNSPEC_ADDRESS_FIRST)) -/* True if X is (const $gp). This is used to initialize the mips16 - gp pseudo register. */ +/* True if X is (const (unspec [(const_int 0)] UNSPEC_GP)). This is used + to initialize the mips16 gp pseudo register. */ #define CONST_GP_P(X) \ - (GET_CODE (X) == CONST && XEXP (X, 0) == pic_offset_table_rtx) + (GET_CODE (X) == CONST \ + && GET_CODE (XEXP (X, 0)) == UNSPEC \ + && XINT (XEXP (X, 0), 1) == UNSPEC_GP) /* The maximum distance between the top of the stack frame and the value $sp has when we save & restore registers. @@ -5564,7 +5566,7 @@ print_operand (FILE *file, rtx op, int letter) fputs (code == EQ ? "t" : "f", file); else if (CONST_GP_P (op)) - print_operand (file, XEXP (op, 0), letter); + fputs (reg_names[GLOBAL_POINTER_REGNUM], file); else output_addr_const (file, op); @@ -7799,7 +7801,7 @@ mips16_gp_pseudo_reg (void) { if (cfun->machine->mips16_gp_pseudo_rtx == NULL_RTX) { - rtx const_gp; + rtx unspec; rtx insn, scan; cfun->machine->mips16_gp_pseudo_rtx = gen_reg_rtx (Pmode); @@ -7807,10 +7809,10 @@ mips16_gp_pseudo_reg (void) /* We want to initialize this to a value which gcc will believe is constant. */ - const_gp = gen_rtx_CONST (Pmode, pic_offset_table_rtx); start_sequence (); + unspec = gen_rtx_UNSPEC (VOIDmode, gen_rtvec (1, const0_rtx), UNSPEC_GP); emit_move_insn (cfun->machine->mips16_gp_pseudo_rtx, - const_gp); + gen_rtx_CONST (Pmode, unspec)); insn = get_insns (); end_sequence (); diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md index 189b59b..5b3c846 100644 --- a/gcc/config/mips/mips.md +++ b/gcc/config/mips/mips.md @@ -56,6 +56,7 @@ (UNSPEC_LOADGP 26) (UNSPEC_LOAD_CALL 27) (UNSPEC_LOAD_GOT 28) + (UNSPEC_GP 29) (UNSPEC_ADDRESS_FIRST 100) |