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| author | J"orn Rennecke <joern.rennecke@st.com> | 2005-05-13 16:56:11 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2005-05-13 17:56:11 +0100 |
| commit | 2d6c85d31464e0e26c381728795d959b14facf36 (patch) | |
| tree | 13100fc3273a13143ae4328a09cbb1accb1ec438 /gcc | |
| parent | 30e5a198438e9b3e70aa7f668e9bf747424098b3 (diff) | |
| download | gcc-2d6c85d31464e0e26c381728795d959b14facf36.zip gcc-2d6c85d31464e0e26c381728795d959b14facf36.tar.gz gcc-2d6c85d31464e0e26c381728795d959b14facf36.tar.bz2 | |
re PR rtl-optimization/20769 (bt-load.c doesn't take nonlocal gotos into account.)
PR rtl-optimization/20769:
* bt-load.c (compute_defs_uses_and_gen): Check for the blockage
pattern emitted by expand_nl_goto_receiver.
PR middle-end/20793:
* integrate.c (allocate_initial_values): Update register liveness
information.
From-SVN: r99668
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 10 | ||||
| -rw-r--r-- | gcc/bt-load.c | 16 | ||||
| -rw-r--r-- | gcc/integrate.c | 16 |
3 files changed, 40 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a6034e2..eff05d4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,13 @@ +2005-05-13 J"orn Rennecke <joern.rennecke@st.com> + + PR rtl-optimization/20769: + * bt-load.c (compute_defs_uses_and_gen): Check for the blockage + pattern emitted by expand_nl_goto_receiver. + + PR middle-end/20793: + * integrate.c (allocate_initial_values): Update register liveness + information. + 2005-05-13 Josh Conner <jconner@apple.com> * arm.c (arm_return_in_memory): Add handling for vector return types. diff --git a/gcc/bt-load.c b/gcc/bt-load.c index c8c9412..47ac16a 100644 --- a/gcc/bt-load.c +++ b/gcc/bt-load.c @@ -506,6 +506,22 @@ compute_defs_uses_and_gen (fibheap_t all_btr_defs, btr_def *def_array, SET_BIT (btr_defset[regno - first_btr], insn_uid); note_other_use_this_block (regno, info.users_this_bb); } + /* Check for the blockage emitted by expand_nl_goto_receiver. */ + else if (current_function_has_nonlocal_label + && GET_CODE (PATTERN (insn)) == ASM_INPUT) + { + btr_user user; + + /* Do the equivalent of calling note_other_use_this_block + for every target register. */ + for (user = info.users_this_bb; user != NULL; + user = user->next) + if (user->use) + user->other_use_this_block = 1; + IOR_HARD_REG_SET (info.btrs_written_in_block, all_btrs); + IOR_HARD_REG_SET (info.btrs_live_in_block, all_btrs); + sbitmap_zero (info.bb_gen); + } else { if (btr_referenced_p (PATTERN (insn), NULL)) diff --git a/gcc/integrate.c b/gcc/integrate.c index 86bb875..3573b44 100644 --- a/gcc/integrate.c +++ b/gcc/integrate.c @@ -392,11 +392,23 @@ allocate_initial_values (rtx *reg_equiv_memory_loc ATTRIBUTE_UNUSED) reg_equiv_memory_loc[regno] = x; else { + basic_block bb; + int new_regno; + gcc_assert (REG_P (x)); - reg_renumber[regno] = REGNO (x); + new_regno = REGNO (x); + reg_renumber[regno] = new_regno; /* Poke the regno right into regno_reg_rtx so that even fixed regs are accepted. */ - REGNO (ivs->entries[i].pseudo) = REGNO (x); + REGNO (ivs->entries[i].pseudo) = new_regno; + /* Update global register liveness information. */ + FOR_EACH_BB (bb) + { + if (REGNO_REG_SET_P(bb->global_live_at_start, regno)) + SET_REGNO_REG_SET (bb->global_live_at_start, new_regno); + if (REGNO_REG_SET_P(bb->global_live_at_end, regno)) + SET_REGNO_REG_SET (bb->global_live_at_end, new_regno); + } } } } |