clang/AMDGPU: Stop looking for hip.bc in device libs (#134801)

This has been an empty library since January 2023

Author: arsenm

clang/lib/Driver/ToolChains/AMDGPU.cpp

@@ -59,8 +59,6 @@ void RocmInstallationDetector::scanLibDevicePath(llvm::StringRef Path) {
       OCKL = FilePath;
     } else if (BaseName == "opencl") {
       OpenCL = FilePath;
-    } else if (BaseName == "hip") {
-      HIP = FilePath;
     } else if (BaseName == "asanrtl") {
       AsanRTL = FilePath;
     } else if (BaseName == "oclc_finite_only_off") {

clang/lib/Driver/ToolChains/HIPAMD.cpp

@@ -392,9 +392,6 @@ HIPAMDToolChain::getDeviceLibs(const llvm::opt::ArgList &DriverArgs) const {
     StringRef GpuArch = getGPUArch(DriverArgs);
     assert(!GpuArch.empty() && "Must have an explicit GPU arch.");
 
-    // Add the HIP specific bitcode library.
-    BCLibs.emplace_back(RocmInstallation->getHIPPath());
-
     // Add common device libraries like ocml etc.
     for (auto N : getCommonDeviceLibNames(DriverArgs, GpuArch.str()))
       BCLibs.emplace_back(N);

clang/lib/Driver/ToolChains/ROCm.h

@@ -129,7 +129,6 @@ class RocmInstallationDetector {
 
   // Libraries that are always linked depending on the language
   SmallString<0> OpenCL;
-  SmallString<0> HIP;
 
   // Asan runtime library
   SmallString<0> AsanRTL;
@@ -151,7 +150,7 @@ class RocmInstallationDetector {
   bool Verbose;
 
   bool allGenericLibsValid() const {
-    return !OCML.empty() && !OCKL.empty() && !OpenCL.empty() && !HIP.empty() &&
+    return !OCML.empty() && !OCKL.empty() && !OpenCL.empty() &&
            WavefrontSize64.isValid() && FiniteOnly.isValid() &&
            UnsafeMath.isValid() && DenormalsAreZero.isValid() &&
            CorrectlyRoundedSqrt.isValid();
@@ -231,11 +230,6 @@ class RocmInstallationDetector {
     return OpenCL;
   }
 
-  StringRef getHIPPath() const {
-    assert(!HIP.empty());
-    return HIP;
-  }
-
   /// Returns empty string of Asan runtime library is not available.
   StringRef getAsanRTLPath() const { return AsanRTL; }
 

clang/test/Driver/hip-device-libs.hip

@@ -208,10 +208,9 @@
 // ALL-NOT: error:
 // ALL: {{"[^"]*clang[^"]*"}}
 
-// RESDIR-SAME: "-mlink-builtin-bitcode" "[[DEVICELIB_DIR:[^"]+(/|\\\\)rocm_resource_dir(/|\\\\)lib(64)?(/|\\\\)amdgcn(/|\\\\).*]]hip.bc"
-// ROCMDIR-SAME: "-mlink-builtin-bitcode" "[[DEVICELIB_DIR:[^"]+(/|\\\\)rocm(/|\\\\)amdgcn(/|\\\\).*]]hip.bc"
+// RESDIR-SAME: "-mlink-builtin-bitcode" "[[DEVICELIB_DIR:[^"]+(/|\\\\)rocm_resource_dir(/|\\\\)lib(64)?(/|\\\\)amdgcn(/|\\\\).*]]ocml.bc"
+// ROCMDIR-SAME: "-mlink-builtin-bitcode" "[[DEVICELIB_DIR:[^"]+(/|\\\\)rocm(/|\\\\)amdgcn(/|\\\\).*]]ocml.bc"
 
-// ALL-SAME: "-mlink-builtin-bitcode" "[[DEVICELIB_DIR]]ocml.bc"
 // ALL-SAME: "-mlink-builtin-bitcode" "[[DEVICELIB_DIR]]ockl.bc"
 
 // FLUSHD-SAME: "-mlink-builtin-bitcode" "[[DEVICELIB_DIR]]oclc_daz_opt_on.bc"

clang/test/Driver/hip-sanitize-options.hip

@@ -52,12 +52,12 @@
 // CHECK-NOT: {{"[^"]*lld(\.exe){0,1}".* ".*hip.bc"}}
 // CHECK: {{"[^"]*clang[^"]*".* "-triple" "x86_64-unknown-linux-gnu".* "-fsanitize=address"}}
 
-// NORDC: {{"[^"]*clang[^"]*".* "-emit-obj".* "-fcuda-is-device".* "-mlink-builtin-bitcode" ".*hip.bc".* "-mlink-bitcode-file" ".*asanrtl.bc".* "-fsanitize=address".*}} "-o" "[[OUT:[^"]*.o]]"
+// NORDC: {{"[^"]*clang[^"]*".* "-emit-obj".* "-fcuda-is-device".* .* "-mlink-bitcode-file" ".*asanrtl.bc".* "-fsanitize=address".*}} "-o" "[[OUT:[^"]*.o]]"
 // NORDC-NOT: {{"[^"]*lld(\.exe){0,1}".*}} "[[OUT]]" {{".*asanrtl.bc" ".*hip.bc"}}
 // NORDC: {{"[^"]*clang[^"]*".* "-triple" "x86_64-unknown-linux-gnu".* "-fsanitize=address"}}
 
 // RDC: {{"[^"]*clang[^"]*".* "-triple" "x86_64-unknown-linux-gnu".* "-fsanitize=address"}}
-// RDC: {{"[^"]*clang[^"]*".* "-emit-llvm-bc".* "-fcuda-is-device".* "-mlink-builtin-bitcode" ".*hip.bc".* "-mlink-bitcode-file" ".*asanrtl.bc".* "-fsanitize=address".*}} "-o" "[[OUT:[^"]*.bc]]"
+// RDC: {{"[^"]*clang[^"]*".* "-emit-llvm-bc".* "-fcuda-is-device".* "-mlink-bitcode-file" ".*asanrtl.bc".* "-fsanitize=address".*}} "-o" "[[OUT:[^"]*.bc]]"
 // RDC-NOT: {{"[^"]*lld(\.exe){0,1}".*}} "[[OUT]]" {{".*asanrtl.bc" ".*hip.bc"}}
 
 // FAIL: error: cannot find ROCm device library for ABI version 5; provide its path via '--rocm-path' or '--rocm-device-lib-path', or pass '-nogpulib' to build without ROCm device library