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| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-12-12 18:26:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-07 21:06:05 -0700 |
| commit | 17ae3e08b94f7aefc411c2298a15fcd8c4573588 (patch) | |
| tree | 8b484ef566dbbbc14db3966183031f4db6efcb7f /example.c | |
| parent | 0aa8746ec975ca719f680fcb8e469236a2c0dc8e (diff) | |
| download | sparse-dev-17ae3e08b94f7aefc411c2298a15fcd8c4573588.tar.gz | |
Use the one-deep CC-cache for OP_SEL too.
Diffstat (limited to 'example.c')
| -rw-r--r-- | example.c | 51 |
1 files changed, 30 insertions, 21 deletions
@@ -817,36 +817,38 @@ static void generate_cast(struct bb_state *state, struct instruction *insn) static void generate_output_storage(struct bb_state *state); +static const char *conditional[] = { + [OP_SET_EQ] = "e", + [OP_SET_NE] = "ne", + [OP_SET_LE] = "le", + [OP_SET_GE] = "ge", + [OP_SET_LT] = "lt", + [OP_SET_GT] = "gt", + [OP_SET_B] = "b", + [OP_SET_A] = "a", + [OP_SET_BE] = "be", + [OP_SET_AE] = "ae" +}; + + static void generate_branch(struct bb_state *state, struct instruction *br) { - const char *branch = "jXXX"; + const char *cond = "XXX"; struct basic_block *target; if (br->cond) { if (state->cc_target == br->cond) { - static const char *branches[] = { - [OP_SET_EQ] = "je", - [OP_SET_NE] = "jne", - [OP_SET_LE] = "jle", - [OP_SET_GE] = "jge", - [OP_SET_LT] = "jlt", - [OP_SET_GT] = "jgt", - [OP_SET_B] = "jb", - [OP_SET_A] = "ja", - [OP_SET_BE] = "jbe", - [OP_SET_AE] = "jae" - }; - branch = branches[state->cc_opcode]; + cond = conditional[state->cc_opcode]; } else { struct hardreg *reg = getreg(state, br->cond, NULL); output_insn(state, "testl %s,%s", reg->name, reg->name); - branch = "jne"; + cond = "ne"; } } generate_output_storage(state); target = br->bb_true; if (br->cond) { - output_insn(state, "%s .L%p", branch, target); + output_insn(state, "j%s .L%p", cond, target); target = br->bb_false; } output_insn(state, "jmp .L%p", target); @@ -896,16 +898,23 @@ static void generate_call(struct bb_state *state, struct instruction *insn) static void generate_select(struct bb_state *state, struct instruction *insn) { - struct hardreg *src1, *src2, *cond, *dst; - - cond = getreg(state, insn->src1, NULL); - output_insn(state, "testl %s,%s", cond->name, cond->name); + const char *cond; + struct hardreg *src1, *src2, *dst; src1 = getreg(state, insn->src2, NULL); dst = copy_reg(state, src1, insn->target); add_pseudo_reg(state, insn->target, dst); src2 = getreg(state, insn->src3, insn->target); - output_insn(state, "sele %s,%s", src2->name, dst->name); + + if (state->cc_target == insn->src1) { + cond = conditional[state->cc_opcode]; + } else { + struct hardreg *reg = getreg(state, insn->src1, NULL); + output_insn(state, "testl %s,%s", reg->name, reg->name); + cond = "ne"; + } + + output_insn(state, "sel%s %s,%s", cond, src2->name, dst->name); } static void generate_asm_inputs(struct bb_state *state, struct asm_constraint_list *list) |