diff options
| author | Richard Henderson <rth@cygnus.com> | 1999-03-13 18:05:38 -0800 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1999-03-13 19:05:38 -0700 |
| commit | 60aadc205a2e4270503d455820b43201df08563e (patch) | |
| tree | 7f3c9e314e075b3f6818eef02c10fa042b9897d8 | |
| parent | 3c674cd258153ff247ac4177916a594d9b266a1b (diff) | |
| download | gcc-60aadc205a2e4270503d455820b43201df08563e.tar.gz | |
alpha.h (HARD_REGNO_MODE_OK): Disallow QI/HImode in fp regs.
* alpha.h (HARD_REGNO_MODE_OK): Disallow QI/HImode in fp regs.
(MODES_TIEABLE_P): Update.
From-SVN: r25761
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/alpha/alpha.h | 12 |
2 files changed, 12 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6dd29b27e44..3e8515aaef6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Thu Mar 11 14:00:58 1999 Richard Henderson <rth@cygnus.com> + + * alpha.h (HARD_REGNO_MODE_OK): Disallow QI/HImode in fp regs. + (MODES_TIEABLE_P): Update. + Thu Mar 11 00:20:52 1999 Alexandre Oliva <oliva@dcc.unicamp.br> * gcc.texi: Update bug reporting instructions to match diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index 2f69908284f..43b0deed743 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -611,18 +611,20 @@ extern void override_options (); /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. On Alpha, the integer registers can hold any mode. The floating-point registers can hold 32-bit and 64-bit integers as well, but not 16-bit - or 8-bit values. If we only allowed the larger integers into FP registers, - we'd have to say that QImode and SImode aren't tiable, which is a - pain. So say all registers can hold everything and see how that works. */ + or 8-bit values. */ -#define HARD_REGNO_MODE_OK(REGNO, MODE) 1 +#define HARD_REGNO_MODE_OK(REGNO, MODE) \ + ((REGNO) < 32 || ((MODE) != QImode && (MODE) != HImode)) /* Value is 1 if it is a good idea to tie two pseudo registers when one has mode MODE1 and one has mode MODE2. If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, for any hard reg, then this must be 0 for correct output. */ -#define MODES_TIEABLE_P(MODE1, MODE2) 1 +#define MODES_TIEABLE_P(MODE1, MODE2) \ + ((MODE1) == QImode || (MODE1) == HImode \ + ? (MODE2) == QImode || (MODE2) == HImode \ + : 1) /* Specify the registers used for certain standard purposes. The values of these macros are register numbers. */ |