* config/sparc/sparc.h (BRANCH_COST): Set the SPARC M7 branch
latency to 1.
---
gcc/config/sparc/sparc.h | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h
index 6277738..686a3d5 100644
--- a/gcc/config/sparc/sparc.h
+++ b/gcc/config/sparc/sparc.h
@@ -1568,7 +1568,8 @@ do {
\
On Niagara-2 and Niagara-3, a not-taken branch costs 1 cycle whereas
a taken branch costs 6 cycles.
- The T4 Supplement specifies the branch latency at 2 cycles. */
+ The T4 Supplement specifies the branch latency at 2 cycles.
+ The M7 Supplement specifies the branch latency at 1 cycle. */
#define BRANCH_COST(speed_p, predictable_p) \
((sparc_cpu == PROCESSOR_V9 \
@@ -1583,7 +1584,9 @@ do {
\
? 5 \
: (sparc_cpu == PROCESSOR_NIAGARA4 \
? 2 \
- : 3)))))
+ : (sparc_cpu == PROCESSOR_NIAGARA7 \
+ ? 1 \
+ : 3))))))
/* Control the assembler format that we output. */
--
1.7.1
