ispc : upgrade 1.17.0 -> 1.18.0

* Don't build with clang specifically and let user decide.
* Drop already merged patch: 0001-Enable-LLVM-15.0-support.patch
* ispc generated headers include a comment will full path to the header. Patch the code to drop this comment.
* Tweak bison and flex invocation to make sure they don't include #line directives.
* Add flex-native to DEPENDS.
* Release notes:
  https://github.com/ispc/ispc/releases/tag/v1.18.0

Signed-off-by: Yogesh Tyagi <yogesh.tyagi@intel.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>

dynamic-layers/clang-layer/recipes-core/ispc/ispc/0001-Enable-LLVM-15.0-support.patch

@@ -1,52 +0,0 @@
-From 9b722217a2818bc4335bf2c7d3293d30aa5977b1 Mon Sep 17 00:00:00 2001
-From: Dmitry Babokin <dmitry.y.babokin@intel.com>
-Date: Fri, 4 Feb 2022 16:45:34 -0800
-Subject: [PATCH 01/24] Enable LLVM 15.0 support
-
-Upstream-Status: Backport [https://github.com/ispc/ispc/commit/9b722217a2818bc4335bf2c7d3293d30aa5977b1]
-
-Signed-off-by: Dmitry Babokin <dmitry.y.babokin@intel.com>
----
- src/ispc.h         | 4 ++--
- src/ispc_version.h | 3 ++-
- 2 files changed, 4 insertions(+), 3 deletions(-)
-
-diff --git a/src/ispc.h b/src/ispc.h
-index 362c2b93..581d5de6 100644
---- a/src/ispc.h
-+++ b/src/ispc.h
-@@ -1,5 +1,5 @@
- /*
--  Copyright (c) 2010-2021, Intel Corporation
-+  Copyright (c) 2010-2022, Intel Corporation
-   All rights reserved.
- 
-   Redistribution and use in source and binary forms, with or without
-@@ -42,7 +42,7 @@
- #include "target_registry.h"
- 
- #if ISPC_LLVM_VERSION < OLDEST_SUPPORTED_LLVM || ISPC_LLVM_VERSION > LATEST_SUPPORTED_LLVM
--#error "Only LLVM 11.0 - 13.0 and 14.0 development branch are supported"
-+#error "Only LLVM 11.0 - 14.0 and 15.0 development branch are supported"
- #endif
- 
- #if defined(_WIN32) || defined(_WIN64)
-diff --git a/src/ispc_version.h b/src/ispc_version.h
-index e8487e5b..04a3cf64 100644
---- a/src/ispc_version.h
-+++ b/src/ispc_version.h
-@@ -50,9 +50,10 @@
- #define ISPC_LLVM_12_0 120000
- #define ISPC_LLVM_13_0 130000
- #define ISPC_LLVM_14_0 140000
-+#define ISPC_LLVM_15_0 150000
- 
- #define OLDEST_SUPPORTED_LLVM ISPC_LLVM_10_0
--#define LATEST_SUPPORTED_LLVM ISPC_LLVM_14_0
-+#define LATEST_SUPPORTED_LLVM ISPC_LLVM_15_0
- 
- #ifdef __ispc__xstr
- #undef __ispc__xstr
--- 
-2.17.1
-

dynamic-layers/clang-layer/recipes-core/ispc/ispc/0001-Fix-QA-Issues.patch

@@ -0,0 +1,37 @@
+From 139b94a7fb72114c31a2a6ab3f7e6024b4a738ec Mon Sep 17 00:00:00 2001
+From: Yogesh Tyagi <yogesh.tyagi@intel.com>
+Date: Tue, 26 Jul 2022 15:25:10 +0800
+Subject: [PATCH] Fix QA Issues
+
+Stop ispc from inserting host file path in generated headers which leads to reproducibility problems.
+
+Upstream-Status: Inappropriate [OE build specific]
+
+Signed-off-by: Yogesh Tyagi <yogesh.tyagi@intel.com>
+
+---
+ src/module.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/module.cpp b/src/module.cpp
+index 58a2ae83..82673052 100644
+--- a/src/module.cpp
++++ b/src/module.cpp
+@@ -2105,7 +2105,7 @@ bool Module::writeHeader(const char *fn) {
+         perror("fopen");
+         return false;
+     }
+-    fprintf(f, "//\n// %s\n// (Header automatically generated by the ispc compiler.)\n", fn);
++    fprintf(f, "//\n// \n// (Header automatically generated by the ispc compiler.)\n");
+     fprintf(f, "// DO NOT EDIT THIS FILE.\n//\n\n");
+ 
+     // Create a nice guard string from the filename, turning any
+@@ -2219,7 +2219,7 @@ bool Module::writeDispatchHeader(DispatchHeaderInfo *DHI) {
+     FILE *f = DHI->file;
+ 
+     if (DHI->EmitFrontMatter) {
+-        fprintf(f, "//\n// %s\n// (Header automatically generated by the ispc compiler.)\n", DHI->fn);
++        fprintf(f, "//\n// \n// (Header automatically generated by the ispc compiler.)\n");
+         fprintf(f, "// DO NOT EDIT THIS FILE.\n//\n\n");
+     }
+     // Create a nice guard string from the filename, turning any

dynamic-layers/clang-layer/recipes-core/ispc/ispc_1.18.0.bb

@@ -14,15 +14,22 @@ S = "${WORKDIR}/git"
 SRC_URI = "git://github.com/ispc/ispc.git;protocol=https;branch=main \
            file://0001-CMakeLists.txt-link-with-libclang-cpp-library-instea.patch \
            file://0002-cmake-don-t-build-for-32-bit-targets.patch \
-           file://0001-Enable-LLVM-15.0-support.patch \
+           file://0001-Fix-QA-Issues.patch \
            "
-SRCREV = "7ad8429369a4d5ced6b524fdfffe623939d8fe9a"
+SRCREV = "f7ec3aa173c816377c215d83196b5c7c3a88db1c"
 
 COMPATIBLE_HOST = '(x86_64).*-linux'
 
-DEPENDS += " clang-native bison-native "
+DEPENDS += " clang-native bison-native flex-native"
 RDEPENDS:${PN} += " clang-libllvm clang"
 
+YFLAGS='-d -t -v -y --file-prefix-map=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}'
+
+do_configure:prepend() {
+        sed -i -e 's#\${BISON_EXECUTABLE}.*#\${BISON_EXECUTABLE} ${YFLAGS} #g' ${S}/CMakeLists.txt
+        sed -i -e 's#\${FLEX_EXECUTABLE}.*#\${FLEX_EXECUTABLE} \-L #g' ${S}/CMakeLists.txt
+}
+
 EXTRA_OECMAKE += " \
                   -DISPC_INCLUDE_TESTS=OFF  \
                   -DISPC_INCLUDE_EXAMPLES=OFF  \
@@ -37,5 +44,4 @@ EXTRA_OECMAKE += " \
                   -DSYSROOT_DIR=${STAGING_DIR_NATIVE}  \
                   "
 
-TOOLCHAIN = "clang"
 BBCLASSEXTEND = "native nativesdk"