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README.md: Added experimental flag & updated gccrs path #1751

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Jan 17, 2023
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README.md: Added experimental flag & updated gccrs path #1751

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6 changes: 3 additions & 3 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,7 @@ $ make
Running the compiler itself without make install we can simply invoke the compiler proper:

```bash
$ ./gcc/rust1 test.rs -frust-debug -frust-dump-parse -Warray-bounds -dumpbase test.rs -mtune=generic -march=x86-64 -O0 -version -fdump-tree-gimple -o test.s -L/lib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib64
$ ./gcc/rust1 test.rs -frust-debug -frust-dump-parse -Warray-bounds -dumpbase test.rs -mtune=generic -march=x86-64 -O0 -version -fdump-tree-gimple -o test.s -L/lib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib64 -frust-incomplete-and-experimental-compiler-do-not-use
```

To invoke the compiler driver (gccrs) we need to:
Expand All @@ -92,8 +92,8 @@ $ make install
Then invoke the compiler from the installation directory:

```bash
$ $HOME/gccrs-install/gccrs -g -O2 -c test.rs -o test.o
$ $HOME/gccrs-install/gccrs -o test test.o
$ $HOME/gccrs-install/bin/gccrs -g -O2 -c test.rs -o test.o -frust-incomplete-and-experimental-compiler-do-not-use
$ $HOME/gccrs-install/bin/gccrs -o test test.o
```

You can also setup your shell to automatically find the installed compiler. For example for `bash`,
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