diff options
| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-03-08 07:32:36 +0000 |
|---|---|---|
| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-03-08 07:32:36 +0000 |
| commit | 45c2938ec41ac5236ecc071bfb6ef147f0a8d5bb (patch) | |
| tree | 22d7ada44abb7cd413b8b1e8ea59251eecd98a92 | |
| parent | 651cd132f38a73aa2ec49526588dad1e1a5b46db (diff) | |
| download | ppe42-gcc-45c2938ec41ac5236ecc071bfb6ef147f0a8d5bb.tar.gz ppe42-gcc-45c2938ec41ac5236ecc071bfb6ef147f0a8d5bb.zip | |
PR middle-end/7796
* unroll.c (calculate_giv_inc): Handle constants being
loaded with LSHIFTRT.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63971 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/unroll.c | 10 |
2 files changed, 14 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index db014873ee3..663b3eb5430 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2003-03-08 Eric Botcazou <ebotcazou@libertysurf.fr> + + PR middle-end/7796 + * unroll.c (calculate_giv_inc): Handle constants being + loaded with LSHIFTRT. + 2003-03-07 David Edelsohn <edelsohn@gnu.org> * config/rs6000/rs6000.c (processor_target_table): Do not disable @@ -20,7 +26,7 @@ 2003-03-07 James E Wilson <wilson@tuliptree.org> - * config/sh/sh.h (HARD_REGNO_NREGS): Round up the XD register count. + * config/sh/sh.h (HARD_REGNO_NREGS): Round up the XD register count. 2003-03-07 Geoffrey Keating <geoffk@apple.com> diff --git a/gcc/unroll.c b/gcc/unroll.c index 982b32dfbf2..3b5dd7c91f8 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -1624,11 +1624,13 @@ calculate_giv_inc (pattern, src_insn, regno) } else if (GET_CODE (increment) == IOR + || GET_CODE (increment) == PLUS || GET_CODE (increment) == ASHIFT - || GET_CODE (increment) == PLUS) + || GET_CODE (increment) == LSHIFTRT) { /* The rs6000 port loads some constants with IOR. - The alpha port loads some constants with ASHIFT and PLUS. */ + The alpha port loads some constants with ASHIFT and PLUS. + The sparc64 port loads some constants with LSHIFTRT. */ rtx second_part = XEXP (increment, 1); enum rtx_code code = GET_CODE (increment); @@ -1645,8 +1647,10 @@ calculate_giv_inc (pattern, src_insn, regno) increment = GEN_INT (INTVAL (increment) | INTVAL (second_part)); else if (code == PLUS) increment = GEN_INT (INTVAL (increment) + INTVAL (second_part)); - else + else if (code == ASHIFT) increment = GEN_INT (INTVAL (increment) << INTVAL (second_part)); + else + increment = GEN_INT ((unsigned HOST_WIDE_INT) INTVAL (increment) >> INTVAL (second_part)); } if (GET_CODE (increment) != CONST_INT) |
