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| author | James Van Artsdalen <jrv@gnu.org> | 1993-03-12 09:18:56 +0000 |
|---|---|---|
| committer | James Van Artsdalen <jrv@gnu.org> | 1993-03-12 09:18:56 +0000 |
| commit | dc577adaac67914bc5d67615aa78e93ffe76cd52 (patch) | |
| tree | d96813528df451e2321779b8c6c1cb5ca650d481 | |
| parent | 9516a9afd7705634814618ecdcac6c58c90d4e15 (diff) | |
| download | gcc-dc577adaac67914bc5d67615aa78e93ffe76cd52.zip gcc-dc577adaac67914bc5d67615aa78e93ffe76cd52.tar.gz gcc-dc577adaac67914bc5d67615aa78e93ffe76cd52.tar.bz2 | |
(movM): If REG_WAS_0, make sure the reg hasn't changed since then.
From-SVN: r3712
| -rw-r--r-- | gcc/config/tahoe/tahoe.md | 12 | ||||
| -rw-r--r-- | gcc/config/vax/vax.md | 12 |
2 files changed, 17 insertions, 7 deletions
diff --git a/gcc/config/tahoe/tahoe.md b/gcc/config/tahoe/tahoe.md index 9e6b85a..bf27234 100644 --- a/gcc/config/tahoe/tahoe.md +++ b/gcc/config/tahoe/tahoe.md @@ -57,9 +57,11 @@ rtx link; if (operands[1] == const1_rtx && (link = find_reg_note (insn, REG_WAS_0, 0)) - && ! XEXP (link, 0)->volatil + && ! INSN_DELETED_P (XEXP (link, 0)) && GET_CODE (XEXP (link, 0)) != NOTE - && no_labels_between_p (XEXP (link, 0), insn)) + && no_labels_between_p (XEXP (link, 0), insn) + /* Make sure the reg hasn't been clobbered. */ + && ! reg_set_between_p (operands[0], XEXP (link, 0), insn)) return \"incl %0\"; if (GET_CODE (operands[1]) == SYMBOL_REF || GET_CODE (operands[1]) == CONST) { @@ -86,9 +88,11 @@ rtx link; if (operands[1] == const1_rtx && (link = find_reg_note (insn, REG_WAS_0, 0)) - && ! XEXP (link, 0)->volatil + && ! INSN_DELETED_P (XEXP (link, 0)) && GET_CODE (XEXP (link, 0)) != NOTE - && no_labels_between_p (XEXP (link, 0), insn)) + && no_labels_between_p (XEXP (link, 0), insn) + /* Make sure the reg hasn't been clobbered. */ + && ! reg_set_between_p (operands[0], XEXP (link, 0), insn)) return \"incw %0\"; if (operands[1] == const0_rtx) return \"clrw %0\"; diff --git a/gcc/config/vax/vax.md b/gcc/config/vax/vax.md index 01b68a5..b3178c4 100644 --- a/gcc/config/vax/vax.md +++ b/gcc/config/vax/vax.md @@ -207,7 +207,9 @@ && ! INSN_DELETED_P (XEXP (link, 0)) && GET_CODE (XEXP (link, 0)) != NOTE /* Make sure cross jumping didn't happen here. */ - && no_labels_between_p (XEXP (link, 0), insn)) + && no_labels_between_p (XEXP (link, 0), insn) + /* Make sure the reg hasn't been clobbered. */ + && ! reg_set_between_p (operands[0], XEXP (link, 0), insn)) return \"incl %0\"; if (GET_CODE (operands[1]) == SYMBOL_REF || GET_CODE (operands[1]) == CONST) { @@ -250,7 +252,9 @@ && ! INSN_DELETED_P (XEXP (link, 0)) && GET_CODE (XEXP (link, 0)) != NOTE /* Make sure cross jumping didn't happen here. */ - && no_labels_between_p (XEXP (link, 0), insn)) + && no_labels_between_p (XEXP (link, 0), insn) + /* Make sure the reg hasn't been clobbered. */ + && ! reg_set_between_p (operands[0], XEXP (link, 0), insn)) return \"incw %0\"; if (GET_CODE (operands[1]) == CONST_INT) @@ -302,7 +306,9 @@ && ! INSN_DELETED_P (XEXP (link, 0)) && GET_CODE (XEXP (link, 0)) != NOTE /* Make sure cross jumping didn't happen here. */ - && no_labels_between_p (XEXP (link, 0), insn)) + && no_labels_between_p (XEXP (link, 0), insn) + /* Make sure the reg hasn't been clobbered. */ + && ! reg_set_between_p (operands[0], XEXP (link, 0), insn)) return \"incb %0\"; if (GET_CODE (operands[1]) == CONST_INT) |