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| author | Richard Kenner <kenner@gcc.gnu.org> | 1992-07-31 08:11:54 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1992-07-31 08:11:54 -0400 |
| commit | 510dd77e9569867570a74513c79eb767344370c6 (patch) | |
| tree | 22c8628cde5f7744c664c8ae0aa453e22e9eea81 | |
| parent | 87b36970b70a7af4b76f5cd13c601e1319b8e4b9 (diff) | |
| download | gcc-510dd77e9569867570a74513c79eb767344370c6.zip gcc-510dd77e9569867570a74513c79eb767344370c6.tar.gz gcc-510dd77e9569867570a74513c79eb767344370c6.tar.bz2 | |
*** empty log message ***
From-SVN: r1730
| -rw-r--r-- | gcc/combine.c | 12 | ||||
| -rw-r--r-- | gcc/final.c | 7 | ||||
| -rw-r--r-- | gcc/reload1.c | 2 |
3 files changed, 20 insertions, 1 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index b3865ed..ab9b09d 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -8095,6 +8095,18 @@ distribute_notes (notes, from_insn, i3, i2, elim_i2, elim_i1) if (XEXP (note, 0) == elim_i2 || XEXP (note, 0) == elim_i1) break; + /* If the register is used in both I2 and I3 and it dies in I3, + we might have added another reference to it. If reg_n_refs + was 2, bump it to 3. This has to be correct since the + register must have been set somewhere. The reason this is + done is because local-alloc.c treats 2 references as a + special case. */ + + if (place == i3 && i2 != 0 && GET_CODE (XEXP (note, 0)) == REG + && reg_n_refs[REGNO (XEXP (note, 0))]== 2 + && reg_referenced_p (XEXP (note, 0), PATTERN (i2))) + reg_n_refs[REGNO (XEXP (note, 0))] = 3; + if (place == 0) for (tem = prev_nonnote_insn (i3); tem && (GET_CODE (tem) == INSN diff --git a/gcc/final.c b/gcc/final.c index e44f77c..fb483db 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -2078,6 +2078,13 @@ output_operand (x, code) { if (x && GET_CODE (x) == SUBREG) x = alter_subreg (x); + + /* If X is a pseudo-register, abort now rather than writing trash to the + assembler file. */ + + if (GET_CODE (x) == REG && REGNO (x) >= FIRST_PSEUDO_REGISTER) + abort (); + PRINT_OPERAND (asm_out_file, x, code); } diff --git a/gcc/reload1.c b/gcc/reload1.c index fcf4236..4627437 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -3321,7 +3321,7 @@ reload_as_needed (first, live_known) for (i = 0; i < NUM_ELIMINABLE_REGS; i++) { INITIAL_ELIMINATION_OFFSET (reg_eliminate[i].from, reg_eliminate[i].to, - reg_eliminate[i].initial_offset) + reg_eliminate[i].initial_offset); reg_eliminate[i].previous_offset = reg_eliminate[i].offset = reg_eliminate[i].initial_offset; } |