For Skylake based processor, decoder is 4-way.
For Sunny Cove and Willow Cove, decoder is 5-way.
For Golden cove, decoder is 6-way.
Bootstrapped and regtested on x86-64-pc-linux-gnu{-m32,}.
Ready to install.
gcc/ChangeLog:
* config/i386/x86-tune-sched.cc (ix86_issue_rate): Adjust for
latest Intel processors.
---
gcc/config/i386/x86-tune-sched.cc | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/gcc/config/i386/x86-tune-sched.cc
b/gcc/config/i386/x86-tune-sched.cc
index 1ffaeef037c..e2765f81902 100644
--- a/gcc/config/i386/x86-tune-sched.cc
+++ b/gcc/config/i386/x86-tune-sched.cc
@@ -73,10 +73,24 @@ ix86_issue_rate (void)
case PROCESSOR_SANDYBRIDGE:
case PROCESSOR_HASWELL:
case PROCESSOR_TREMONT:
+ case PROCESSOR_SKYLAKE:
+ case PROCESSOR_SKYLAKE_AVX512:
+ case PROCESSOR_CASCADELAKE:
+ case PROCESSOR_CANNONLAKE:
case PROCESSOR_ALDERLAKE:
case PROCESSOR_GENERIC:
return 4;
+ case PROCESSOR_ICELAKE_CLIENT:
+ case PROCESSOR_ICELAKE_SERVER:
+ case PROCESSOR_TIGERLAKE:
+ case PROCESSOR_COOPERLAKE:
+ case PROCESSOR_ROCKETLAKE:
+ return 5;
+
+ case PROCESSOR_SAPPHIRERAPIDS:
+ return 6;
+
default:
return 1;
}
--
2.18.1
