package/llvm-project/llvm: add llvm dump support

LLVM_ENABLE_DUMP required by mesa3d rusticl:

https://docs.mesa3d.org/rusticl.html

Signed-off-by: Romain Naour <romain.naour@smile.fr>
Acked-by: Daniel Lang <dalang@gmx.at>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/llvm-project/llvm/Config.in

@@ -57,6 +57,12 @@ config BR2_PACKAGE_LLVM_BPF
 	  Build BPF target. Select this option if you are going
 	  to install bcc on the target.
 
+config BR2_PACKAGE_LLVM_DUMP
+	bool "enable dump"
+	help
+	  Build LLVM with dump functions even when assertions are
+	  disabled.
+
 endif
 
 comment "llvm needs a toolchain w/ wchar, threads, C++, gcc >= 7, dynamic library, host gcc >= 7"

package/llvm-project/llvm/llvm.mk

@@ -228,6 +228,13 @@ HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
 LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
 endif
 
+HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_DUMP=OFF
+ifeq ($(BR2_PACKAGE_LLVM_DUMP),y)
+LLVM_CONF_OPTS += -DLLVM_ENABLE_DUMP=ON
+else
+LLVM_CONF_OPTS += -DLLVM_ENABLE_DUMP=OFF
+endif
+
 # Compiler-rt not in the source tree.
 # llvm runtime libraries are not in the source tree.
 # Polly is not in the source tree.