diff options
Diffstat (limited to 'toolchain/gcc/patches/7.3.0/100-PR-rtl-optimization-83496.patch')
| -rw-r--r-- | toolchain/gcc/patches/7.3.0/100-PR-rtl-optimization-83496.patch | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/toolchain/gcc/patches/7.3.0/100-PR-rtl-optimization-83496.patch b/toolchain/gcc/patches/7.3.0/100-PR-rtl-optimization-83496.patch deleted file mode 100644 index 466a731c50..0000000000 --- a/toolchain/gcc/patches/7.3.0/100-PR-rtl-optimization-83496.patch +++ /dev/null @@ -1,136 +0,0 @@ -From: ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> -Date: Mon, 26 Feb 2018 16:29:30 +0000 -Subject: [PATCH] PR rtl-optimization/83496 * reorg.c - (steal_delay_list_from_target): Change REDUNDANT array from booleans to - RTXes. Call fix_reg_dead_note on every non-null element. - (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a - redundant insn, if any. (relax_delay_slots): Likewise. - (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN. - -git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@257996 138bc75d-0d04-0410-961f-82ee72b054a4 ---- - create mode 120000 gcc/testsuite/gcc.c-torture/execute/20180226-1.c - ---- a/gcc/reorg.c -+++ b/gcc/reorg.c -@@ -1035,7 +1035,8 @@ check_annul_list_true_false (int annul_t - - static void - steal_delay_list_from_target (rtx_insn *insn, rtx condition, rtx_sequence *seq, -- vec<rtx_insn *> *delay_list, resources *sets, -+ vec<rtx_insn *> *delay_list, -+ struct resources *sets, - struct resources *needed, - struct resources *other_needed, - int slots_to_fill, int *pslots_filled, -@@ -1048,7 +1049,7 @@ steal_delay_list_from_target (rtx_insn * - int used_annul = 0; - int i; - struct resources cc_set; -- bool *redundant; -+ rtx_insn **redundant; - - /* We can't do anything if there are more delay slots in SEQ than we - can handle, or if we don't know that it will be a taken branch. -@@ -1087,7 +1088,7 @@ steal_delay_list_from_target (rtx_insn * - if (! targetm.can_follow_jump (insn, seq->insn (0))) - return; - -- redundant = XALLOCAVEC (bool, XVECLEN (seq, 0)); -+ redundant = XALLOCAVEC (rtx_insn *, XVECLEN (seq, 0)); - for (i = 1; i < seq->len (); i++) - { - rtx_insn *trial = seq->insn (i); -@@ -1151,7 +1152,10 @@ steal_delay_list_from_target (rtx_insn * - we therefore decided not to copy. */ - for (i = 1; i < seq->len (); i++) - if (redundant[i]) -- update_block (seq->insn (i), insn); -+ { -+ fix_reg_dead_note (redundant[i], insn); -+ update_block (seq->insn (i), insn); -+ } - - /* Show the place to which we will be branching. */ - *pnew_thread = first_active_target_insn (JUMP_LABEL (seq->insn (0))); -@@ -1198,6 +1202,7 @@ steal_delay_list_from_fallthrough (rtx_i - for (i = 1; i < seq->len (); i++) - { - rtx_insn *trial = seq->insn (i); -+ rtx_insn *prior_insn; - - /* If TRIAL sets CC0, stealing it will move it too far from the use - of CC0. */ -@@ -1209,8 +1214,9 @@ steal_delay_list_from_fallthrough (rtx_i - break; - - /* If this insn was already done, we don't need it. */ -- if (redundant_insn (trial, insn, *delay_list)) -+ if ((prior_insn = redundant_insn (trial, insn, *delay_list))) - { -+ fix_reg_dead_note (prior_insn, insn); - update_block (trial, insn); - delete_from_delay_slot (trial); - continue; -@@ -1790,15 +1796,14 @@ fix_reg_dead_note (rtx_insn *start_insn, - } - } - --/* Delete any REG_UNUSED notes that exist on INSN but not on REDUNDANT_INSN. -+/* Delete any REG_UNUSED notes that exist on INSN but not on OTHER_INSN. - - This handles the case of udivmodXi4 instructions which optimize their -- output depending on whether any REG_UNUSED notes are present. -- we must make sure that INSN calculates as many results as REDUNDANT_INSN -- does. */ -+ output depending on whether any REG_UNUSED notes are present. We must -+ make sure that INSN calculates as many results as OTHER_INSN does. */ - - static void --update_reg_unused_notes (rtx_insn *insn, rtx redundant_insn) -+update_reg_unused_notes (rtx_insn *insn, rtx other_insn) - { - rtx link, next; - -@@ -1810,8 +1815,7 @@ update_reg_unused_notes (rtx_insn *insn, - || !REG_P (XEXP (link, 0))) - continue; - -- if (! find_regno_note (redundant_insn, REG_UNUSED, -- REGNO (XEXP (link, 0)))) -+ if (!find_regno_note (other_insn, REG_UNUSED, REGNO (XEXP (link, 0)))) - remove_note (insn, link); - } - } -@@ -2324,9 +2328,8 @@ follow_jumps (rtx label, rtx_insn *jump, - taken and THREAD_IF_TRUE is set. This is used for the branch at the - end of a loop back up to the top. - -- OWN_THREAD and OWN_OPPOSITE_THREAD are true if we are the only user of the -- thread. I.e., it is the fallthrough code of our jump or the target of the -- jump when we are the only jump going there. -+ OWN_THREAD is true if we are the only user of the thread, i.e. it is -+ the target of the jump when we are the only jump going there. - - If OWN_THREAD is false, it must be the "true" thread of a jump. In that - case, we can only take insns from the head of the thread for our delay -@@ -3117,7 +3120,7 @@ relax_delay_slots (rtx_insn *first) - /* Look at every JUMP_INSN and see if we can improve it. */ - for (insn = first; insn; insn = next) - { -- rtx_insn *other; -+ rtx_insn *other, *prior_insn; - bool crossing; - - next = next_active_insn (insn); -@@ -3223,8 +3226,9 @@ relax_delay_slots (rtx_insn *first) - /* See if the first insn in the delay slot is redundant with some - previous insn. Remove it from the delay slot if so; then set up - to reprocess this insn. */ -- if (redundant_insn (pat->insn (1), delay_insn, vNULL)) -+ if ((prior_insn = redundant_insn (pat->insn (1), delay_insn, vNULL))) - { -+ fix_reg_dead_note (prior_insn, insn); - update_block (pat->insn (1), insn); - delete_from_delay_slot (pat->insn (1)); - next = prev_active_insn (next); |