================
@@ -614,3 +614,30 @@ nvfortran defines `-fast` as
- `-Mcache_align`: there is no equivalent flag in Flang or Clang.
- `-Mflushz`: flush-to-zero mode - when `-ffast-math` is specified, Flang will
link to `crtfastmath.o` to ensure denormal numbers are flushed to zero.
+
+
+## FCC_OVERRIDE_OPTIONS
+
+The environment variable `FCC_OVERRIDE_OPTIONS` can be used to edit flang's
+command line arguments. The value of this variable is a space-separated list of
+edits to perform. The edits are applied in the order in which they appear in
+`FCC_OVERRIDE_OPTIONS`. Each edit should be one of the following forms:
+
+- `#`: Silence information about the changes to the command line arguments.
+
+- `^FOO`: Add `FOO` as a new argument at the beginning of the command line.
----------------
abidh wrote:
I have added "right after the name of the compiler executable" in both places.
Hopefully that is enough to make it clear.
https://github.com/llvm/llvm-project/pull/140556
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