diff options
| author | John F Carr <jfc@mit.edu> | 1998-01-30 18:31:34 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@cygnus.com> | 1998-01-30 18:31:34 +0000 |
| commit | 1afad9c287af0a9422d8ebddc61b0464b969c9cf (patch) | |
| tree | 81b3b6d0e6ca2e1d722becf838a59ed4ce2201df | |
| parent | d6fb7fb86228857856ecec65b955e5bcae75fe0c (diff) | |
patch from jfc to improve aliasing/scheduling
* mips.c (save_restore_insns): Set RTX_UNCHANGING_P in register
save/restore MEM rtl.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@17559 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5dc3e307d12..6c099950a9f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Fri Jan 30 18:30:03 1998 John F Carr <jfc@mit.edu> + + * mips.c (save_restore_insns): Set RTX_UNCHANGING_P in register + save/restore MEM rtl. + Fri Jan 30 09:08:16 1998 Jeffrey A Law (law@cygnus.com) * configure.in: Check for declaration of abort. diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 53beb4146b5..6589ccfed0f 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -5802,6 +5802,7 @@ save_restore_insns (store_p, large_reg, large_offset, file) rtx mem_rtx = gen_rtx (MEM, word_mode, gen_rtx (PLUS, Pmode, base_reg_rtx, GEN_INT (gp_offset - base_offset))); + RTX_UNCHANGING_P (mem_rtx) = 1; /* The mips16 does not have an instruction to load $31, so we load $7 instead, and work things out @@ -6006,6 +6007,7 @@ save_restore_insns (store_p, large_reg, large_offset, file) rtx mem_rtx = gen_rtx (MEM, sz, gen_rtx (PLUS, Pmode, base_reg_rtx, GEN_INT (fp_offset - base_offset))); + RTX_UNCHANGING_P (mem_rtx) = 1; if (store_p) { |