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| author | Jakub Jelinek <jakub@redhat.com> | 2018-03-13 09:04:54 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-03-13 09:04:54 +0100 |
| commit | fc31d739fb9feeadfeb28cf795530cd1d1be2d54 (patch) | |
| tree | 368a65daa6856675d76a602635cf7073a9d88ebb /gcc/reg-stack.c | |
| parent | 639e8522c050cd9b814bc1a085f38b0418a8759a (diff) | |
| download | gcc-fc31d739fb9feeadfeb28cf795530cd1d1be2d54.zip gcc-fc31d739fb9feeadfeb28cf795530cd1d1be2d54.tar.gz gcc-fc31d739fb9feeadfeb28cf795530cd1d1be2d54.tar.bz2 | |
re PR target/84828 (ICE in verify_flow_info at gcc/cfghooks.c:265)
PR target/84828
* reg-stack.c (change_stack): Change update_end var from int to
rtx_insn *, if non-NULL don't update just BB_END (current_block), but
also call set_block_for_insn on the newly added insns and rescan.
* g++.dg/ext/pr84828.C: New test.
From-SVN: r258476
Diffstat (limited to 'gcc/reg-stack.c')
| -rw-r--r-- | gcc/reg-stack.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index 82feb5d..73bb4fc 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -2489,7 +2489,7 @@ change_stack (rtx_insn *insn, stack_ptr old, stack_ptr new_stack, enum emit_where where) { int reg; - int update_end = 0; + rtx_insn *update_end = NULL; int i; /* Stack adjustments for the first insn in a block update the @@ -2511,7 +2511,7 @@ change_stack (rtx_insn *insn, stack_ptr old, stack_ptr new_stack, if (where == EMIT_AFTER) { if (current_block && BB_END (current_block) == insn) - update_end = 1; + update_end = insn; insn = NEXT_INSN (insn); } @@ -2686,7 +2686,16 @@ change_stack (rtx_insn *insn, stack_ptr old, stack_ptr new_stack, } if (update_end) - BB_END (current_block) = PREV_INSN (insn); + { + for (update_end = NEXT_INSN (update_end); update_end != insn; + update_end = NEXT_INSN (update_end)) + { + set_block_for_insn (update_end, current_block); + if (INSN_P (update_end)) + df_insn_rescan (update_end); + } + BB_END (current_block) = PREV_INSN (insn); + } } /* Print stack configuration. */ |