diff options
Diffstat (limited to 'gcc/resource.c')
| -rw-r--r-- | gcc/resource.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/resource.c b/gcc/resource.c index f8a23ed..c4bcfd7 100644 --- a/gcc/resource.c +++ b/gcc/resource.c @@ -987,9 +987,13 @@ mark_target_live_regs (rtx_insn *insns, rtx target_maybe_return, struct resource { regset regs_live = DF_LR_IN (BASIC_BLOCK_FOR_FN (cfun, b)); rtx_insn *start_insn, *stop_insn; + df_ref def; /* Compute hard regs live at start of block. */ REG_SET_TO_HARD_REG_SET (current_live_regs, regs_live); + FOR_EACH_ARTIFICIAL_DEF (def, b) + if (DF_REF_FLAGS (def) & DF_REF_AT_TOP) + SET_HARD_REG_BIT (current_live_regs, DF_REF_REGNO (def)); /* Get starting and ending insn, handling the case where each might be a SEQUENCE. */ |