riscv64: assume fast unaligned access.
We have a CTS test for this, so we may as well let the compiler take
advantage!
Test: treehugger
Change-Id: Icb6dc73be5e6da1155f39ca03245ae6b9d24dfb5
diff --git a/cc/config/riscv64_device.go b/cc/config/riscv64_device.go
index e048622..d5bc760 100644
--- a/cc/config/riscv64_device.go
+++ b/cc/config/riscv64_device.go
@@ -27,6 +27,9 @@
"-Werror=implicit-function-declaration",
"-fno-emulated-tls",
"-march=rv64gcv_zba_zbb_zbs",
+ // Equivalent to "-munaligned-access", but our clang doesn't have that yet.
+ "-Xclang -target-feature -Xclang +unaligned-scalar-mem",
+ "-Xclang -target-feature -Xclang +unaligned-vector-mem",
}
riscv64ArchVariantCflags = map[string][]string{}
@@ -34,6 +37,9 @@
riscv64Ldflags = []string{
"-Wl,--hash-style=gnu",
"-march=rv64gcv_zba_zbb_zbs",
+ // Equivalent to "-munaligned-access", but our clang doesn't have that yet.
+ "-Xclang -target-feature -Xclang +unaligned-scalar-mem",
+ "-Xclang -target-feature -Xclang +unaligned-vector-mem",
}
riscv64Lldflags = append(riscv64Ldflags,