Commits · 191b18e9de50031b9b526079cd025f9755357f01 · lvzhengyang / riscv-gcc-1

23 Sep, 1992 12 commits
- (find_reloads_address): Properly check for constant address. · 191b18e9
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From-SVN: r2220
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  Richard Kenner committed Sep 23, 1992
  191b18e9 Browse Files
- (simplify_unary_operation, case SIGN_EXTEND): Use HOST_BITS_PER_WIDE_INT, · f12564b4
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not HOST_BITS_PER_INT.

From-SVN: r2219
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  Richard Kenner committed Sep 23, 1992
  f12564b4 Browse Files
- (fold_convert): Add missing cast to HOST_WIDE_INT. · 1f9dfb72
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From-SVN: r2218
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  Richard Kenner committed Sep 23, 1992
  1f9dfb72 Browse Files
- (jump_optimize): Tighten up test for when we can't delete a set of CC0. · 01ca1b91
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Don't insert insns between set and use of CC0.

From-SVN: r2217
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  Richard Kenner committed Sep 23, 1992
  01ca1b91 Browse Files
- (shorten_branches): Correctly access insn needing delay slot. · b6c9b49a
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From-SVN: r2216
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  Richard Kenner committed Sep 23, 1992
  b6c9b49a Browse Files
- (significant_bits, num_sign_bit_copies): Handle SUBREGs made for promoted · c3c2cb37
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variables.

From-SVN: r2215
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  Richard Kenner committed Sep 23, 1992
  c3c2cb37 Browse Files
- (fill_simple_delay_slots): Don't make copy of insn that references CC0. · d6749dec
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From-SVN: r2214
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  Richard Kenner committed Sep 23, 1992
  d6749dec Browse Files
- (define_attr "type"): New type "ibranch". · fd8c9e1c
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(define_attr "length"): Set length for "ibranch" type.
(define_attr "in_delay_slot"): Add new type "ibranch"; for "branch", only has
delay slot if length is 4.
(define_attr "cc_type"): Add new type "ibranch".
(indirect branches): Now type "ibranch".

From-SVN: r2213
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  Richard Kenner committed Sep 23, 1992
  fd8c9e1c Browse Files
- Undo most of 9/22 changes · 305aa9e2
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From-SVN: r2212
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  Michael Meissner committed Sep 23, 1992
  305aa9e2 Browse Files
- Finish changing _ANSI_H to _ANSI_H_. · 65a6dd9a
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From-SVN: r2211
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  Richard Stallman committed Sep 23, 1992
  65a6dd9a Browse Files
- (basic_induction_var): Inside PLUS, when looking for promoted · b81fd0f4
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var, make sure it's a REG.

From-SVN: r2210
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  Richard Stallman committed Sep 23, 1992
  b81fd0f4 Browse Files
- (perform_fixdfsi): Copy arg to memory variable. · 8c153768
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From-SVN: r2209
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  Richard Stallman committed Sep 23, 1992
  8c153768 Browse Files
22 Sep, 1992 5 commits
- Eliminate -fbuiltin/-fno-builtin hacks & enable OSF/rose shared libs. · a48bb578
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From-SVN: r2208
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  Michael Meissner committed Sep 22, 1992
  a48bb578 Browse Files
- Eliminate -fbuiltin/-fno-builtin hacks. · 9bbd6c3a
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From-SVN: r2207
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  Michael Meissner committed Sep 22, 1992
  9bbd6c3a Browse Files
- Put correct source into tree. · 39282292
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From-SVN: r2206
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  Michael Meissner committed Sep 22, 1992
  39282292 Browse Files
- Fix varardic function returning a structure or union. · 6cb6c3b3
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From-SVN: r2205
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  Michael Meissner committed Sep 22, 1992
  6cb6c3b3 Browse Files
- (choose_reload_regs): When setting reg_has_output_reload, · 372e033b
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loop over multiple regs only for hard reg.  Set reg_is_output_reload
in separate loop.

From-SVN: r2204
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  Richard Stallman committed Sep 22, 1992
  372e033b Browse Files
21 Sep, 1992 10 commits
- reorg.c (mark_set_resources, case REG): A register is set iff "in_dest" is nonzero. · 4323a0e1
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	* reorg.c (mark_set_resources, case REG): A register is set iff
	"in_dest" is nonzero.

From-SVN: r2203
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  Jeff Law committed Sep 21, 1992
  4323a0e1 Browse Files
- (make_extraction): Make test whether to use AND or · cc471082
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{SIGN,ZERO}_EXTRACT depend on UNSIGNEDP.

From-SVN: r2202
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  Richard Stallman committed Sep 21, 1992
  cc471082 Browse Files
- (reload): Print the needs to the dump file. · e404a39a
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(reload): If we can't get a register that we know won't interfere with groups,
get one that might instead of giving up.

From-SVN: r2201
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  Richard Kenner committed Sep 21, 1992
  e404a39a Browse Files
- Get alloca using ALLOCA, not libucb.a. · 8ed694b1
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From-SVN: r2200
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  Richard Stallman committed Sep 21, 1992
  8ed694b1 Browse Files
- Initial revision · 8005495c
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From-SVN: r2199
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  Richard Stallman committed Sep 21, 1992
  8005495c Browse Files
- (put_var_into_stack): Check REG != 0 before dereference. · 2baccce2
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From-SVN: r2198
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  Richard Stallman committed Sep 21, 1992
  2baccce2 Browse Files
- (find_comparison_args): New args PMODE1, PMODE2. · 13c9910f
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(fold_rtx, record_jump_equiv): Use them to get modes of comparison.
(fold_rtx): Associate MINUS with nested PLUS.

From-SVN: r2197
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  Richard Stallman committed Sep 21, 1992
  13c9910f Browse Files
- (subst): Set and compare extend_op with 0, not NULL. · e64ff103
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From-SVN: r2196
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  Richard Stallman committed Sep 21, 1992
  e64ff103 Browse Files
- (LPREFIX): Overridden as `.L'. · 8fed83ff
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(ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_INTERNAL_LABEL): Likewise.

From-SVN: r2195
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  Richard Stallman committed Sep 21, 1992
  8fed83ff Browse Files
- (try_combine): Always call set_significant on new patterns, so don't call · 22609cbf
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just in split case.

(subst): Move sign extension inside arithmetic when we have a constant
computation inside another computation.

From-SVN: r2194
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  Richard Kenner committed Sep 20, 1992
  22609cbf Browse Files
20 Sep, 1992 7 commits

Fix indentation. Carry out renamings from hash.h. · 80b0e34e
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Rename args and locals also.

From-SVN: r2193
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Richard Stallman committed Sep 20, 1992
80b0e34e Browse Files
Fix indentation, clean up comments. · d0bd180d
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Rename structure fields and typedefs.

From-SVN: r2192
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Richard Stallman committed Sep 20, 1992
d0bd180d Browse Files

(jump_optimize): Delete insns that set registers that are not used elsewhere. · 2156dfe3

Fix some bugs in "if (...) x = a; else x = b;" code.
Remove uses of reorder_insns.
Add code to make scc insns for "if (...) x = exp;" if EXP is simple enough.
Optimize "if (...) x = b;" if jumps very expensive; don't use a REG as the
older value of X since it doesn't help and can hurt.
Correctly place generated insns in above case.

From-SVN: r2191

committed Sep 20, 1992

2156dfe3 Browse Files

(emit_insn_after_with_line_notes): New function. · 255680cf
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From-SVN: r2190
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Richard Kenner committed Sep 20, 1992
255680cf Browse Files

(subst, simplify_and_const_int, significant_bits): Treat BYTE_LOADS_SIGN_EXTEND… · 457816e2

(subst, simplify_and_const_int, significant_bits): Treat BYTE_LOADS_SIGN_EXTEND just like BYTE_LOADS_ZERO_EXTEND.

(subst, simplify_and_const_int, significant_bits): Treat
BYTE_LOADS_SIGN_EXTEND just like BYTE_LOADS_ZERO_EXTEND.
(num_sign_bit_copies, case MEM): New case for BYTE_LOADS_SIGN_EXTEND.
(num_sign_bit_copies, case SUBREG): Handle just like significant_bits.

From-SVN: r2189

committed Sep 20, 1992

457816e2 Browse Files

(find_reloads, find_reloads_toplev): Treat BYTE_LOADS_SIGN_EXTEND just · 46da6b3a
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like BYTE_LOADS_ZERO_EXTEND.

From-SVN: r2188
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Richard Kenner committed Sep 20, 1992
46da6b3a Browse Files
Add comment in find_reloads. · 3934c98b
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From-SVN: r2187
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Richard Stallman committed Sep 20, 1992
3934c98b Browse Files

19 Sep, 1992 6 commits

(SIZE_TYPE): Defined. · ec35ef50
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From-SVN: r2186
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Richard Stallman committed Sep 19, 1992
ec35ef50 Browse Files
(walk_insn_part, case IF_THEN_ELSE): Refine when HAVE_CMOVE_FLAG gets set. · 9e87cc89
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From-SVN: r2185
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Richard Kenner committed Sep 19, 1992
9e87cc89 Browse Files
(delete_insn): Don't change labels to NOTEs if we would not really have · 9571f079
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deleted them.

From-SVN: r2184
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Richard Kenner committed Sep 19, 1992
9571f079 Browse Files
(note_insn_name): Fix typo: had NOT_INSN_DELETED_LABEL. · 8cfef35a
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From-SVN: r2183
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Richard Kenner committed Sep 19, 1992
8cfef35a Browse Files

(try_combine): When removing REG_UNUSED note, update reg_n_deaths. · 1a26b032

Likewise, when making new REG_DEAD notes for distribute_notes.
(remove_death, move_deaths): Update reg_n_deaths.
(distribute_notes): When placing second REG_DEAD or REG_UNUSED note or
ignoring such a note, update reg_n_deaths.

(simplify_comparison, case ASHIFT): Fix typo.

(try_combine): The insns made by a DEFINE_SPLIT might contain a PARALLEL and
the call to recog_for_combine might add it.


(combine_instructions): Clear significant_valid at end of combine pass for
a function.
(find_split_point, case MEM): See if first operand of the PLUS that makes
up an address is complex.
(subst): Add missing arg to recursive calls when IF_THEN_ELSE is an arg
of an operator.
(subst, case IF_THEN_ELSE): Generalize code to propagate comparison result
into arms by using known_cond.
If an arm is the first operand of the comparison, make it the true arm.
Remove unneeded comparison when arms are identical.
Try to convert IF_THEN_ELSE to ABS, (neg (abs X)), [US]MIN, [US]MAX.
Convert (if_then_else (ne A 0) (OP X C) X) to (OP X (mult A C)).
(subst, case SET): If we don't have conditional moves, convert IF_THEN_ELSE
into logical operations.
(subst, case AND): Always make conditional moves, even if we don't support
them on the machine.
(known_cond, extended_count): New functions.
(gen_binary): For commutative operations, put constant last.

From-SVN: r2182

committed Sep 19, 1992

1a26b032 Browse Files

(find_splittable_regs): If any BIV update isn't simple, don't split it. · 0e91429a
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(final_giv_value): Look for biv updates by matching insns; don't try to
reparse the insn.

From-SVN: r2181
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Richard Kenner committed Sep 19, 1992
0e91429a Browse Files