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| author | David Ung <davidu@mips.com> | 2007-07-03 18:07:08 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2007-07-03 18:07:08 +0000 |
| commit | c849ec734cf531eaf4b44662f4c3e1f4d440aad9 (patch) | |
| tree | 39dfc2394b5b4443444ead8ffe273c2d7ea861c8 /gcc | |
| parent | 74d4d0244c8f4aab17ab7d476fb568416b018442 (diff) | |
| download | gcc-c849ec734cf531eaf4b44662f4c3e1f4d440aad9.zip gcc-c849ec734cf531eaf4b44662f4c3e1f4d440aad9.tar.gz gcc-c849ec734cf531eaf4b44662f4c3e1f4d440aad9.tar.bz2 | |
mips.c (mips_issue_rate): Return 4 for 74K processors.
gcc/
2007-07-03 David Ung <davidu@mips.com>
* config/mips/mips.c (mips_issue_rate): Return 4 for 74K processors.
From-SVN: r126268
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e58836c..e63b334 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,8 @@ 2007-07-03 David Ung <davidu@mips.com> + + * config/mips/mips.c (mips_issue_rate): Return 4 for 74K processors. + +2007-07-03 David Ung <davidu@mips.com> Richard Sandiford <richard@codesourcery.com> * doc/invoke.texi: Document -march=74kf3_2. diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 3331b9e..0cb1d1a 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -10813,6 +10813,12 @@ mips_issue_rate (void) case PROCESSOR_74KF2_1: case PROCESSOR_74KF1_1: case PROCESSOR_74KF3_2: + /* The 74k is not strictly quad-issue cpu, but can be seen as one + by the scheduler. It can issue 1 ALU, 1 AGEN and 2 FPU insns, + but in reality only a maximum of 3 insns can be issued as the + floating point load/stores also require a slot in the AGEN pipe. */ + return 4; + case PROCESSOR_R4130: case PROCESSOR_R5400: case PROCESSOR_R5500: |