mcrosier added inline comments.
================
Comment at: include/clang/Driver/Options.td:1731
def mno_pie_copy_relocations : Flag<["-"], "mno-pie-copy-relocations">,
Group<m_Group>;
+def mfentry : Flag<["-"], "mfentry">, HelpText<"insert calls to fentry at
function entry">, Flags<[CC1Option]>, Group<m_Group>;
def mx87 : Flag<["-"], "mx87">, Group<m_x86_Features_Group>;
----------------
Should this not be in the m_x86_Features_Group since this is an x86 specific
flag?
================
Comment at: test/CodeGen/fentry.c:1
+// RUN: %clang_cc1 -pg -mfentry -triple i386-unknown-unknown -emit-llvm -o -
%s | FileCheck -check-prefix=HAS %s
+// RUN: %clang_cc1 -pg -mfentry -triple x86_64-unknown-linux-gnu -emit-llvm -o
- %s | FileCheck -check-prefix=HAS %s
----------------
I want to say this test should be in test/Frontend directory since you're
testing a new CC1 option.
================
Comment at: test/CodeGen/fentry.c:11
+
+//HAS: attributes #{{[0-9]+}} = { {{.*}}"fentry-call"="true"{{.*}} }
+//NOHAS-NOT: attributes #{{[0-9]+}} = { {{.*}}"fentry-call"{{.*}} }
----------------
I'd prefer we stick with the default CHECK and CHECK-NOT prefixes.
https://reviews.llvm.org/D28001
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