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| author | Vladimir Makarov <vmakarov@redhat.com> | 2015-03-19 19:59:38 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2015-03-19 19:59:38 +0000 |
| commit | ef0006ebdb71de99e15aef9fd2a2d7c1830c6011 (patch) | |
| tree | 26ebdc19432cdb1ca1ddd759688d8287518ca414 /gcc/lra-constraints.c | |
| parent | 7cb73573606d5b0881b0af778a81b5b9c1569f36 (diff) | |
| download | gcc-ef0006ebdb71de99e15aef9fd2a2d7c1830c6011.zip gcc-ef0006ebdb71de99e15aef9fd2a2d7c1830c6011.tar.gz gcc-ef0006ebdb71de99e15aef9fd2a2d7c1830c6011.tar.bz2 | |
re PR rtl-optimization/63491 (Ice in LRA with simple vector test case on power)
2015-03-19 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/63491
* lra-constraints.c (check_and_process_move): Use src instead of
sreg. Remove some dead code.
2015-03-19 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/63491
* gcc.target/powerpc/pr63491.c: New.
From-SVN: r221522
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index 0ddd842..57d731a 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -1074,10 +1074,9 @@ static bool check_and_process_move (bool *change_p, bool *sec_mem_p ATTRIBUTE_UNUSED) { int sregno, dregno; - rtx dest, src, dreg, sreg, old_sreg, new_reg, scratch_reg; + rtx dest, src, dreg, sreg, new_reg, scratch_reg; rtx_insn *before; enum reg_class dclass, sclass, secondary_class; - machine_mode sreg_mode; secondary_reload_info sri; lra_assert (curr_insn_set != NULL_RTX); @@ -1101,8 +1100,6 @@ check_and_process_move (bool *change_p, bool *sec_mem_p ATTRIBUTE_UNUSED) were a right class for the pseudo, secondary_... hooks usually are not define for ALL_REGS. */ return false; - sreg_mode = GET_MODE (sreg); - old_sreg = sreg; if (REG_P (sreg)) sclass = get_reg_class (REGNO (sreg)); if (sclass == ALL_REGS) @@ -1161,9 +1158,9 @@ check_and_process_move (bool *change_p, bool *sec_mem_p ATTRIBUTE_UNUSED) sri.icode = CODE_FOR_nothing; sri.extra_cost = 0; secondary_class - = (enum reg_class) targetm.secondary_reload (true, sreg, + = (enum reg_class) targetm.secondary_reload (true, src, (reg_class_t) dclass, - sreg_mode, &sri); + GET_MODE (src), &sri); /* Check the target hook consistency. */ lra_assert ((secondary_class == NO_REGS && sri.icode == CODE_FOR_nothing) @@ -1179,14 +1176,12 @@ check_and_process_move (bool *change_p, bool *sec_mem_p ATTRIBUTE_UNUSED) *change_p = true; new_reg = NULL_RTX; if (secondary_class != NO_REGS) - new_reg = lra_create_new_reg_with_unique_value (sreg_mode, NULL_RTX, + new_reg = lra_create_new_reg_with_unique_value (GET_MODE (src), NULL_RTX, secondary_class, "secondary"); start_sequence (); - if (old_sreg != sreg) - sreg = copy_rtx (sreg); if (sri.icode == CODE_FOR_nothing) - lra_emit_move (new_reg, sreg); + lra_emit_move (new_reg, src); else { enum reg_class scratch_class; @@ -1197,18 +1192,13 @@ check_and_process_move (bool *change_p, bool *sec_mem_p ATTRIBUTE_UNUSED) (insn_data[sri.icode].operand[2].mode, NULL_RTX, scratch_class, "scratch")); emit_insn (GEN_FCN (sri.icode) (new_reg != NULL_RTX ? new_reg : dest, - sreg, scratch_reg)); + src, scratch_reg)); } before = get_insns (); end_sequence (); lra_process_new_insns (curr_insn, before, NULL, "Inserting the move"); if (new_reg != NULL_RTX) - { - if (GET_CODE (src) == SUBREG) - SUBREG_REG (src) = new_reg; - else - SET_SRC (curr_insn_set) = new_reg; - } + SET_SRC (curr_insn_set) = new_reg; else { if (lra_dump_file != NULL) |