CMakeLists: Enabled more clang warnings.

Enable `-Wextra` and `-Wunreachable-code-loop-increment`. Disable `-Wno-unused-parameter`. Detects the build warning / breakage fixed by https://swiftshader-review.googlesource.com/c/SwiftShader/+/43989. Bug: none. Reducing chance of future build breakages. Change-Id: I3001f0ded71f2f71f817581996cc727e345845a3 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/43991 Kokoro-Result: kokoro <noreply+kokoro@google.com> Reviewed-by: Antonio Maiorano <amaiorano@google.com> Tested-by: Ben Clayton <bclayton@google.com>

CMakeLists: Enabled more clang warnings.
5470988c · Ben Clayton · 21fb75fe · 5470988c
Commit 5470988c authored Apr 16, 2020 by Ben Clayton
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CMakeLists.txt CMakeLists.txt +3 -0

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--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -364,6 +364,8 @@ else()

    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
        list(APPEND SWIFTSHADER_COMPILE_OPTIONS
+            "-Wextra"
+            "-Wunreachable-code-loop-increment"
            "-Wunused-lambda-capture"
            "-Wstring-conversion"
            "-Wextra-semi"
@@ -403,6 +405,7 @@ else()
            "-Wno-comment"                        # multi-line comment
            "-Wno-undefined-var-template"         # instantiation of variable 'X' required here, but no definition is available
            "-Wno-extra-semi"                     # extra ';' after member function definition
+            "-Wno-unused-parameter"               # unused parameter 'X'

            # Silence errors caused by unknown warnings when building with older
            # versions of Clang. This demands checking that warnings added above