diff options
Diffstat (limited to 'gas/config/xtensa-relax.c')
| -rw-r--r-- | gas/config/xtensa-relax.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/gas/config/xtensa-relax.c b/gas/config/xtensa-relax.c index 09c29ad..779c907 100644 --- a/gas/config/xtensa-relax.c +++ b/gas/config/xtensa-relax.c @@ -247,7 +247,10 @@ struct string_pattern_pair_struct addi.n a4, 0x1010 => addi a4, 0x1010 => addmi a4, 0x1010 - => addmi a4, 0x1000, addi a4, 0x10. */ + => addmi a4, 0x1000, addi a4, 0x10. + + See the comments in xg_assembly_relax for some important details + regarding how these chains must be built. */ static string_pattern_pair widen_spec_list[] = { @@ -380,6 +383,10 @@ static string_pattern_pair widen_spec_list[] = {"bnez %as,%label ? IsaUseDensityInstruction", "beqz.n %as,%LABEL;j %label;LABEL"}, {"beqz %as,%label", "bnez %as,%LABEL;j %label;LABEL"}, {"bnez %as,%label", "beqz %as,%LABEL;j %label;LABEL"}, + {"WIDE.beqz %as,%label ? IsaUseDensityInstruction", "bnez.n %as,%LABEL;j %label;LABEL"}, + {"WIDE.bnez %as,%label ? IsaUseDensityInstruction", "beqz.n %as,%LABEL;j %label;LABEL"}, + {"WIDE.beqz %as,%label", "bnez %as,%LABEL;j %label;LABEL"}, + {"WIDE.bnez %as,%label", "beqz %as,%LABEL;j %label;LABEL"}, /* Widening expect-taken branches. */ {"beqzt %as,%label ? IsaUsePredictedBranches", "bnez %as,%LABEL;j %label;LABEL"}, @@ -415,6 +422,29 @@ static string_pattern_pair widen_spec_list[] = {"bbc %as,%at,%label", "bbs %as,%at,%LABEL;j %label;LABEL"}, {"bbs %as,%at,%label", "bbc %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bgez %as,%label", "bltz %as,%LABEL;j %label;LABEL"}, + {"WIDE.bltz %as,%label", "bgez %as,%LABEL;j %label;LABEL"}, + {"WIDE.beqi %as,%imm,%label", "bnei %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.bnei %as,%imm,%label", "beqi %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.bgei %as,%imm,%label", "blti %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.blti %as,%imm,%label", "bgei %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.bgeui %as,%imm,%label", "bltui %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.bltui %as,%imm,%label", "bgeui %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.bbci %as,%imm,%label", "bbsi %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.bbsi %as,%imm,%label", "bbci %as,%imm,%LABEL;j %label;LABEL"}, + {"WIDE.beq %as,%at,%label", "bne %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bne %as,%at,%label", "beq %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bge %as,%at,%label", "blt %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.blt %as,%at,%label", "bge %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bgeu %as,%at,%label", "bltu %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bltu %as,%at,%label", "bgeu %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bany %as,%at,%label", "bnone %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bnone %as,%at,%label", "bany %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.ball %as,%at,%label", "bnall %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bnall %as,%at,%label", "ball %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bbc %as,%at,%label", "bbs %as,%at,%LABEL;j %label;LABEL"}, + {"WIDE.bbs %as,%at,%label", "bbc %as,%at,%LABEL;j %label;LABEL"}, + /* Expanding calls with literals. */ {"call0 %label,%ar0 ? IsaUseL32R", "LITERAL %label; l32r a0,%LITERAL; callx0 a0,%ar0"}, @@ -1571,7 +1601,10 @@ build_transition (insn_pattern *initial_insn, precond_e *precond; insn_repl_e *r; - opcode = xtensa_opcode_lookup (isa, initial_insn->t.opcode_name); + if (!wide_branch_opcode (initial_insn->t.opcode_name, ".w18", &opcode) + && !wide_branch_opcode (initial_insn->t.opcode_name, ".w15", &opcode)) + opcode = xtensa_opcode_lookup (isa, initial_insn->t.opcode_name); + if (opcode == XTENSA_UNDEFINED) { /* It is OK to not be able to translate some of these opcodes. */ |