This patch doesn't do anything useful, it simply adds a new command-line
option -mtrack-speculation to AArch64. Subsequent patches build on this.
* config/aarch64/aarch64.opt (mtrack-speculation): New target option.
---
gcc/config/aarch64/aarch64.opt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/gcc/config/aarch64/aarch64.opt b/gcc/config/aarch64/aarch64.opt
index 1426b45..bc9b22a 100644
--- a/gcc/config/aarch64/aarch64.opt
+++ b/gcc/config/aarch64/aarch64.opt
@@ -214,3 +214,7 @@ Target RejectNegative Joined Enum(sve_vector_bits) Var(aarch64_sve_vector_bits)
mverbose-cost-dump
Common Undocumented Var(flag_aarch64_verbose_cost)
Enables verbose cost model dumping in the debug dump files.
+
+mtrack-speculation
+Target Var(aarch64_track_speculation)
+Generate code to track when the CPU might be speculating incorrectly.
