[PATCH] D17111: [CUDA] pass debug options to ptxas.

[Justin Lebar via cfe-commits]

jlebar added inline comments.

================
Comment at: lib/Driver/Tools.cpp:10707
@@ +10706,3 @@
+    // ptxas does not accept -g option if optimization is enabled, so we ignore
+    // compiler's -O* options if we want debug info.
+    CmdArgs.push_back("-g");
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I think this is would be very surprising to users.  -g does not usually have a large performance impact, so -O2 -g does not generally mean "generate slow code," as far as I know.  I'm concerned that this will result in people accidentally compiling with ptxas -O0 (which is why I didn't do it like this to begin with).

Can we accomplish this in a more explicit way?


http://reviews.llvm.org/D17111