[HIP] Remove dots in HIP runtime path (llvm#143792)

Remove the dots in the HIP path before passing to the rpath flag

Author: scchan

clang/lib/Driver/ToolChains/Linux.cpp

@@ -985,9 +985,11 @@ void Linux::AddHIPRuntimeLibArgs(const ArgList &Args,
       Args.MakeArgString(StringRef("-L") + RocmInstallation->getLibPath()));
 
   if (Args.hasFlag(options::OPT_frtlib_add_rpath,
-                   options::OPT_fno_rtlib_add_rpath, false))
-    CmdArgs.append(
-        {"-rpath", Args.MakeArgString(RocmInstallation->getLibPath())});
+                   options::OPT_fno_rtlib_add_rpath, false)) {
+    SmallString<0> p = RocmInstallation->getLibPath();
+    llvm::sys::path::remove_dots(p, true);
+    CmdArgs.append({"-rpath", Args.MakeArgString(p)});
+  }
 
   CmdArgs.push_back("-lamdhip64");
 }

clang/test/Driver/hip-runtime-libs-linux.hip

@@ -20,6 +20,11 @@
 // RUN:   --rocm-path=%S/Inputs/rocm %t.o -frtlib-add-rpath 2>&1 \
 // RUN:   | FileCheck -check-prefixes=ROCM-RPATH %s
 
+// Test that a canonical HIP runtime path is passed to the -rpath flag
+// RUN: %clang -### --hip-link --target=x86_64-linux-gnu \
+// RUN:   --rocm-path=%S/Inputs/rocm/./bin/../include/../ %t.o -frtlib-add-rpath 2>&1 \
+// RUN:   | FileCheck -check-prefixes=ROCM-RPATH-CANONICAL %s
+
 // Test detecting latest /opt/rocm-{release} directory.
 // RUN: rm -rf %t && mkdir -p %t/opt
 // RUN: cp -r %S/Inputs/rocm %t/opt/rocm-3.9.0-1234
@@ -55,6 +60,7 @@
 
 // ROCM-PATH: "-L[[HIPRT:.*/Inputs/rocm/lib]]" "-lamdhip64"
 // ROCM-RPATH: "-L[[HIPRT:.*/Inputs/rocm/lib]]" "-rpath" "[[HIPRT]]" "-lamdhip64"
+// ROCM-RPATH-CANONICAL: "-rpath" "{{.*/rocm/lib}}" "-lamdhip64"
 // ROCM-REL: "-L[[HIPRT:.*/opt/rocm-3.10.0/lib]]" "-lamdhip64"
 // NOHIPRT-NOT: "-L{{.*/Inputs/rocm/lib}}"
 // NOHIPRT-NOT: "-rpath" "{{.*/Inputs/rocm/lib}}"