https://github.com/vzakhari created
https://github.com/llvm/llvm-project/pull/120320
After #120165 clang started complaining about unknown
option -f[no-]realloc-lhs. This change fixes it to ignore
the option like it used to be.
>From 5d8d3e08eb322b72f4058b98fc7ea0d6321eaa6c Mon Sep 17 00:00:00 2001
From: Slava Zakharin <szakha...@nvidia.com>
Date: Tue, 17 Dec 2024 14:24:57 -0800
Subject: [PATCH] [flang] Ignore -f[no-]realloc-lhs.
After #120165 clang started complaining about unknown
option -f[no-]realloc-lhs. This change fixes it to ignore
the option like it used to be.
---
clang/include/clang/Driver/Options.td | 4 ++--
clang/test/Driver/frealloc-lhs.cpp | 7 +++++++
2 files changed, 9 insertions(+), 2 deletions(-)
create mode 100644 clang/test/Driver/frealloc-lhs.cpp
diff --git a/clang/include/clang/Driver/Options.td
b/clang/include/clang/Driver/Options.td
index 7b544d2534d469..bc3c548da8b96c 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -3465,7 +3465,7 @@ defm diagnostics_show_line_numbers :
BoolFOption<"diagnostics-show-line-numbers"
PosFlag<SetTrue>>;
def fno_realloc_lhs : Flag<["-"], "fno-realloc-lhs">, Group<f_Group>,
HelpText<"An allocatable left-hand side of an intrinsic assignment is
assumed to be allocated and match the shape/type of the right-hand side">,
- Visibility<[FlangOption, FC1Option]>;
+ Visibility<[ClangOption, CLOption, FlangOption, FC1Option]>;
def fno_stack_protector : Flag<["-"], "fno-stack-protector">, Group<f_Group>,
HelpText<"Disable the use of stack protectors">;
def fno_strict_aliasing : Flag<["-"], "fno-strict-aliasing">, Group<f_Group>,
@@ -4300,7 +4300,7 @@ defm stack_size_section :
BoolFOption<"stack-size-section",
"Emit section containing metadata on function stack sizes">,
NegFlag<SetFalse>>;
def frealloc_lhs : Flag<["-"], "frealloc-lhs">, Group<f_Group>,
- Visibility<[FlangOption, FC1Option]>,
+ Visibility<[ClangOption, CLOption, FlangOption, FC1Option]>,
HelpText<"If an allocatable left-hand side of an intrinsic assignment is
unallocated or its shape/type does not match the right-hand side, then it is
automatically (re)allocated">;
def fstack_usage : Flag<["-"], "fstack-usage">, Group<f_Group>,
HelpText<"Emit .su file containing information on function stack sizes">;
diff --git a/clang/test/Driver/frealloc-lhs.cpp
b/clang/test/Driver/frealloc-lhs.cpp
new file mode 100644
index 00000000000000..792247deaaa2c1
--- /dev/null
+++ b/clang/test/Driver/frealloc-lhs.cpp
@@ -0,0 +1,7 @@
+// RUN: %clang -Wunused-command-line-argument -frealloc-lhs -### %s 2> %t
+// RUN: FileCheck < %t %s --check-prefix=REALLOCLHS
+// RUN: %clang -Wunused-command-line-argument -fno-realloc-lhs -### %s 2> %t
+// RUN: FileCheck < %t %s --check-prefix=NOREALLOCLHS
+
+// CHECK: argument unused during compilation: '-frealloc-lhs'
+// CHECK: argument unused during compilation: '-fno-realloc-lhs'
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