Disable -warn-stack-size for LLVM older than version 12
This command line option is getting replaced with a module attribute in
https://reviews.llvm.org/D103928. Temporarily disable it for LLVM
versions newer than 11. Once LLVM 12 is released we should be able to
use the attribute instead to retain this functionality.
Note that upstream SwiftShader still uses LLVM 10, and the primary usage
of this functionality is to prevent stack overflow in Chrome's fuzzers,
which is not affected by this temporary change.
Bug: b/191193823
Change-Id: I2edb0dc4df5d434540741bcb3007539311eb958a
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/54968
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Commit-Queue: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/Reactor/LLVMJIT.cpp b/src/Reactor/LLVMJIT.cpp
index 2d9a801..bb5ffcc 100644
--- a/src/Reactor/LLVMJIT.cpp
+++ b/src/Reactor/LLVMJIT.cpp
@@ -151,7 +151,11 @@
#if defined(__i386__) || defined(__x86_64__)
"-x86-asm-syntax=intel", // Use Intel syntax rather than the default AT&T
#endif
+ // TODO(b/191193823): TODO(ndesaulniers): Update this after
+ // go/compilers/fc018ebb608ee0c1239b405460e49f1835ab6175
+#if LLVM_VERSION_MAJOR <= 11
"-warn-stack-size=524288" // Warn when a function uses more than 512 KiB of stack memory
+#endif
};
parseCommandLineOptionsOnce(sizeof(argv) / sizeof(argv[0]), argv);
