x86/build: Add check if compiler supports -fcx-limited-range

Signed-off-by: Alexandre Frade <kernel@xanmod.org>
xanmod · Aug 11, 2023 · 7dbb937 · 7dbb937
1 parent a02b6a7
commit 7dbb937
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
@@ -62,7 +62,8 @@ export BITS
 
 # More compiler optimizations
 ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE
-KBUILD_CFLAGS += -O3 -fexcess-precision=fast -freciprocal-math -fcx-limited-range
+KBUILD_CFLAGS += -O3 -fexcess-precision=fast -freciprocal-math \
+		 $(call cc-option,-fcx-limited-range)
 KBUILD_RUSTFLAGS += -Copt-level=3
 endif