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| author | Ronak Chauhan <RonakNilesh.Chauhan@amd.com> | 2020-07-24 15:21:46 +0530 |
|---|---|---|
| committer | Ronak Chauhan <RonakNilesh.Chauhan@amd.com> | 2020-08-18 17:43:16 +0530 |
| commit | e760e85680d6ade8934118d0854637b213a21f1a (patch) | |
| tree | e121625c3610a2e6de1608eea1e863608e179c88 /llvm/tools/llvm-objdump/llvm-objdump.cpp | |
| parent | dcd4589a0d68032076f6951190ab170fef9c3cf5 (diff) | |
| download | llvm-e760e85680d6ade8934118d0854637b213a21f1a.zip llvm-e760e85680d6ade8934118d0854637b213a21f1a.tar.gz llvm-e760e85680d6ade8934118d0854637b213a21f1a.tar.bz2 | |
[llvm-objdump][AMDGPU] Detect CPU string
AMDGPU ISA isn't backwards compatible and hence -mcpu must always be specified during disassembly.
However, the AMDGPU target CPU is stored in e_flags in the ELF object.
This patch allows targets to implement CPU string detection, and also implements it for AMDGPU by looking at e_flags.
Reviewed By: scott.linder
Differential Revision: https://reviews.llvm.org/D84519
Diffstat (limited to 'llvm/tools/llvm-objdump/llvm-objdump.cpp')
| -rw-r--r-- | llvm/tools/llvm-objdump/llvm-objdump.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp index ecdd227..6b3ecd9 100644 --- a/llvm/tools/llvm-objdump/llvm-objdump.cpp +++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp @@ -2170,6 +2170,10 @@ static void disassembleObject(const ObjectFile *Obj, bool InlineRelocs) { if (!AsmInfo) reportError(Obj->getFileName(), "no assembly info for target " + TripleName); + + if (MCPU.empty()) + MCPU = Obj->tryGetCPUName().getValueOr("").str(); + std::unique_ptr<const MCSubtargetInfo> STI( TheTarget->createMCSubtargetInfo(TripleName, MCPU, Features.getString())); if (!STI) |