[PATCH] D15829: [PGO] Clang Option that enables IR level PGO instrumentation

[David Li via cfe-commits]

davidxl added a comment.

Should add a test case in test/Driver/instrprof-ld.c.


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Comment at: lib/CodeGen/BackendUtil.cpp:435
@@ +434,3 @@
+  if (CodeGenOpts.ProfileIRInstr) {
+    assert (!CodeGenOpts.ProfileInstrGenerate);
+    if (!CodeGenOpts.InstrProfileOutput.empty())
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What is this asserting about?

================
Comment at: lib/Frontend/CompilerInvocation.cpp:453
@@ +452,3 @@
+  Opts.ProfileIRInstr = Args.hasArg(OPT_fprofile_ir_instr);
+  if (!Opts.ProfileIRInstr)
+    Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) ||
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http://reviews.llvm.org/D15829