diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 12 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 21 |
2 files changed, 23 insertions, 10 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4d91368..ba593ae 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,15 @@ +2008-11-16 Richard Sandiford <rdsandiford@googlemail.com> + + PR target/38052 + * config/mips/mips.c (machine_function): Update the comment + above global_pointer. + (mips_global_pointer): Use INVALID_REGNUM rather than 0 to indicate + that a function doesn't need a global pointer. + (mips_current_loadgp_style): Update accordingly. + (mips_restore_gp): Likewise. + (mips_output_cplocal): Likewise. + (mips_expand_prologue): Likewise. + 2008-11-16 Eric Botcazou <ebotcazou@adacore.com> * config/sparc/sparc.c (function_arg_vector_value): Remove 'base_mode' diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 5198fd3..4244a9f 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -292,7 +292,8 @@ struct machine_function GTY(()) { /* The current frame information, calculated by mips_compute_frame_info. */ struct mips_frame_info frame; - /* The register to use as the function's global pointer. */ + /* The register to use as the function's global pointer, or INVALID_REGNUM + if the function doesn't need one. */ unsigned int global_pointer; /* True if mips_adjust_insn_length should ignore an instruction's @@ -8358,8 +8359,8 @@ mips16_cfun_returns_in_fpr_p (void) } /* Return the register that should be used as the global pointer - within this function. Return 0 if the function doesn't need - a global pointer. */ + within this function. Return INVALID_REGNUM if the function + doesn't need a global pointer. */ static unsigned int mips_global_pointer (void) @@ -8394,7 +8395,7 @@ mips_global_pointer (void) -call_nonpic code, no new uses will be introduced during or after reload. */ if (TARGET_ABICALLS_PIC0) - return 0; + return INVALID_REGNUM; /* We need to handle the following implicit gp references: @@ -8416,7 +8417,7 @@ mips_global_pointer (void) external libgcc routine. */ if (!crtl->uses_const_pool && !mips16_cfun_returns_in_fpr_p ()) - return 0; + return INVALID_REGNUM; } /* We need a global pointer, but perhaps we can use a call-clobbered @@ -8659,7 +8660,7 @@ mips_compute_frame_info (void) enum mips_loadgp_style mips_current_loadgp_style (void) { - if (!TARGET_USE_GOT || cfun->machine->global_pointer == 0) + if (!TARGET_USE_GOT || cfun->machine->global_pointer == INVALID_REGNUM) return LOADGP_NONE; if (TARGET_RTP_PIC) @@ -8809,7 +8810,7 @@ mips_restore_gp (rtx temp) { gcc_assert (TARGET_ABICALLS && TARGET_OLDABI); - if (cfun->machine->global_pointer == 0) + if (cfun->machine->global_pointer == INVALID_REGNUM) return; if (TARGET_MIPS16) @@ -8886,7 +8887,7 @@ static void mips_output_cplocal (void) { if (!TARGET_EXPLICIT_RELOCS - && cfun->machine->global_pointer > 0 + && cfun->machine->global_pointer != INVALID_REGNUM && cfun->machine->global_pointer != GLOBAL_POINTER_REGNUM) output_asm_insn (".cplocal %+", 0); } @@ -9122,7 +9123,7 @@ mips_expand_prologue (void) unsigned int nargs; rtx insn; - if (cfun->machine->global_pointer > 0) + if (cfun->machine->global_pointer != INVALID_REGNUM) SET_REGNO (pic_offset_table_rtx, cfun->machine->global_pointer); frame = &cfun->machine->frame; @@ -9240,7 +9241,7 @@ mips_expand_prologue (void) /* Initialize the $gp save slot. */ if (frame->cprestore_size > 0 - && cfun->machine->global_pointer != 0) + && cfun->machine->global_pointer != INVALID_REGNUM) { if (TARGET_MIPS16) mips_emit_move (mips_cprestore_slot (MIPS_PROLOGUE_TEMP (Pmode)), |