[llvm] [llvm-dwarfdump] Decode the virtual register names from the dwarf register numbers (PR #192353)

[Michael Buch via llvm-commits]

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+; Test checks if llvm-dwarfdump prints the correct PTX virtual register name strings
+; (e.g. %rd1) instead of a hex encoding in DW_OP_regx.
+
+; File t.cubin is generated using the following steps.
+; llc < %s -o t.ptx
+; ptxas t.ptx -o t.cubin
+
+; RUN: llc < %s -mtriple=nvptx64 | FileCheck %s --check-prefix PTX
+; prebuilt debug ptx-register-manes.cubin must be kept next to this file.
+; RUN: llvm-dwarfdump %S/ptx-register-names.cubin | FileCheck %s --check-prefix DWARF
+
+; PTX: .debug_info
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Michael137 wrote:

Any reason to check the assembly here in a dwarfdump test?

https://github.com/llvm/llvm-project/pull/192353