This change may have to wait for the test results to determine whether
to merge.
在 2022/9/26 下午2:58, Xi Ruoyao 写道:
Currently our cache information from -mtune is not really used, pass it
to the optimizer so it will be really in-effect.
gcc/ChangeLog:
* config/loongarch/loongarch.cc
(loongarch_option_override_internal): Set the corresponding
params for L1D cache line size, L1D cache size, and L2D cache
size.
---
gcc/config/loongarch/loongarch.cc | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index 98c0e26cdb9..81594cf5b98 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -63,6 +63,7 @@ along with GCC; see the file COPYING3. If not see
#include "context.h"
#include "builtins.h"
#include "rtl-iter.h"
+#include "opts.h"
/* This file should be included last. */
#include "target-def.h"
@@ -6096,6 +6097,16 @@ loongarch_option_override_internal (struct gcc_options
*opts)
if (loongarch_branch_cost == 0)
loongarch_branch_cost = loongarch_cost->branch_cost;
+ const loongarch_cache &tune_cache =
+ loongarch_cpu_cache[la_target.cpu_tune];
+
+ SET_OPTION_IF_UNSET (opts, &global_options_set, param_l1_cache_line_size,
+ tune_cache.l1d_line_size);
+ SET_OPTION_IF_UNSET (opts, &global_options_set, param_l1_cache_size,
+ tune_cache.l1d_size);
+ SET_OPTION_IF_UNSET (opts, &global_options_set, param_l2_cache_size,
+ tune_cache.l2d_size);
+
if (TARGET_DIRECT_EXTERN_ACCESS && flag_shlib)
error ("%qs cannot be used for compiling a shared library",
"-mdirect-extern-access");
