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| author | Richard Earnshaw <rearnsha@arm.com> | 2003-01-15 16:06:47 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2003-01-15 16:06:47 +0000 |
| commit | 89c4b810466abcea1ccf7861b627d72e3739345e (patch) | |
| tree | c03a9ef5ffc689f4abb8e2a3be1aaaa700b19b42 | |
| parent | 3cd4577449f2e7af97026a85a3ccd81a27fa9101 (diff) | |
| download | gcc-89c4b810466abcea1ccf7861b627d72e3739345e.zip gcc-89c4b810466abcea1ccf7861b627d72e3739345e.tar.gz gcc-89c4b810466abcea1ccf7861b627d72e3739345e.tar.bz2 | |
flow.c (find_auto_inc): Also try to generate a PRE_MODIFY with constant offset.
* flow.c (find_auto_inc): Also try to generate a PRE_MODIFY with
constant offset.
From-SVN: r61333
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/flow.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 282d718..e9c5d2c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2003-01-15 Richard Earnshaw <rearnsha@arm.com> + * flow.c (find_auto_inc): Also try to generate a PRE_MODIFY with + constant offset. + +2003-01-15 Richard Earnshaw <rearnsha@arm.com> + * arm.h (HAVE_PRE_MODIFY_DISP, HAVE_PRE_MODIFY_REG): Define. (HAVE_POST_MODIFY_DISP, HAVE_POST_MODIFY_REG): Define. (ARM_GO_IF_LEGITIMATE_ADDRESS): Handle pre/post-modify addresses. @@ -3525,6 +3525,12 @@ find_auto_inc (pbi, x, insn) addr, inc_val)), insn, x, incr, addr); + else if (HAVE_PRE_MODIFY_DISP && offset == INTVAL (inc_val)) + attempt_auto_inc (pbi, gen_rtx_PRE_MODIFY (Pmode, addr, + gen_rtx_PLUS (Pmode, + addr, + inc_val)), + insn, x, incr, addr); } else if (GET_CODE (inc_val) == REG && ! reg_set_between_p (inc_val, PREV_INSN (insn), |