Run curated spirv-opt passes through slang-glslang. (#3266)

* Run curated spirv-opt passes through slang-glslang.

* Cleanup.

* Replace spirv-dis downstream compiler with glslang.

* delete slang-spirv-opt.cpp.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 0 insertions, 66 deletions

diff --git a/source/slang/slang-spirv-opt.cpp b/source/slang/slang-spirv-opt.cpp
deleted file mode 100644
index 786358324..000000000
--- a/source/slang/slang-spirv-opt.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-#include "slang-spirv-opt.h"
-#include "slang-spirv-val.h"
-
-namespace Slang
-{
-
-struct RemoveFileRAII
-{
-    String fileName;
-
-    RemoveFileRAII(String inFileName)
-        :fileName(inFileName)
-    {}
-
-    ~RemoveFileRAII()
-    {
-        File::remove(fileName);
-    }
-};
-
-SlangResult optimizeSPIRV(const List<uint8_t>& spirv, String& outErr, List<uint8_t>& outSpv)
-{
-    // Set up our process
-    CommandLine commandLine;
-    commandLine.m_executableLocation.setName("spirv-opt");
-    commandLine.addArg("--eliminate-dead-functions");
-    commandLine.addArg("--eliminate-local-single-block");
-    commandLine.addArg("--eliminate-local-single-store");
-    commandLine.addArg("--eliminate-dead-code-aggressive");
-
-    commandLine.addArg("-o");
-    String outFileName;
-    File::generateTemporary(UnownedStringSlice("out_spv"), outFileName);
-    RemoveFileRAII removeFile(outFileName);
-
-    commandLine.addArg(outFileName);
-
-    RefPtr<Process> p;
-
-    // If we failed to even start the process, then spirv-opt isn't available
-    SLANG_RETURN_ON_FAIL(Process::create(commandLine, 0, p));
-    const auto in = p->getStream(StdStreamType::In);
-    const auto out = p->getStream(StdStreamType::Out);
-    const auto err = p->getStream(StdStreamType::ErrorOut);
-
-    List<Byte> outErrData;
-    SLANG_RETURN_ON_FAIL(StreamUtil::readAndWrite(in, spirv.getArrayView(), out, outSpv, err, outErrData));
-
-    outSpv.clear();
-    File::readAllBytes(outFileName, outSpv);
-
-    SLANG_RETURN_ON_FAIL(p->waitForTermination(3600000));
-
-    outErr = String(
-        reinterpret_cast<const char*>(outErrData.begin()),
-        reinterpret_cast<const char*>(outErrData.end())
-    );
-
-    const auto ret = p->getReturnValue();
-    if (ret != 0)
-        return SLANG_FAIL;
-
-    return debugValidateSPIRV(outSpv);
-}
-
-}