diff options
| author | meissner <meissner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-05-04 05:38:47 +0000 |
|---|---|---|
| committer | meissner <meissner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-05-04 05:38:47 +0000 |
| commit | 21e5dc0169f0dbd2485f7536ebfda8401c4b76c9 (patch) | |
| tree | 33ebf64e84aca3b4d16f51cc4c5b88e76ed4106f /gcc/config/rs6000/rs6000.c | |
| parent | e64c90eb86152530ec555c398acc701104df38f2 (diff) | |
| download | gcc-21e5dc0169f0dbd2485f7536ebfda8401c4b76c9.tar.gz | |
[gcc]
2013-05-03 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/57150
* config/rs6000/rs6000.h (HARD_REGNO_CALLER_SAVE_MODE): Use DFmode
to save TFmode registers and DImode to save TImode registers for
caller save operations.
(HARD_REGNO_CALL_PART_CLOBBERED): TFmode and TDmode do not need to
mark being partially clobbered since they only use the first
double word.
* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): TFmode
and TDmode only use the upper 64-bits of each VSX register.
[gcc/testsuite]
2013-05-03 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/57150
* gcc.target/powerpc/pr57150.c: New file.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198593 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/rs6000/rs6000.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 7c329754482..4f7fc70d566 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -2335,8 +2335,16 @@ rs6000_init_hard_regno_mode_ok (bool global_init_p) reg_size = UNITS_PER_WORD; for (m = 0; m < NUM_MACHINE_MODES; ++m) - rs6000_class_max_nregs[m][c] - = (GET_MODE_SIZE (m) + reg_size - 1) / reg_size; + { + int reg_size2 = reg_size; + + /* TFmode/TDmode always takes 2 registers, even in VSX. */ + if (m == TDmode || m == TFmode) + reg_size2 = UNITS_PER_FP_WORD; + + rs6000_class_max_nregs[m][c] + = (GET_MODE_SIZE (m) + reg_size2 - 1) / reg_size2; + } } if (TARGET_E500_DOUBLE) |