Add backend name to Target to enable runtime info to be fed back into TableGen

Summary:
Make it possible to feed runtime information back to tablegen to enable
profile-guided tablegen-eration, detection of untested tablegen definitions, etc.

Being a cross-compiler by nature, LLVM will potentially collect data for multiple
architectures (e.g. when running 'ninja check'). We therefore need a way for
TableGen to figure out what data applies to the backend it is generating at the
time. This patch achieves that by including the name of the 'def X : Target ...'
for the backend in the TargetRegistry.

Reviewers: qcolombet

Reviewed By: qcolombet

Subscribers: jholewinski, arsenm, jyknight, aditya_nandakumar, sdardis, nemanjai, ab, nhaehnle, t.p.northover, javed.absar, qcolombet, llvm-commits, fedor.sergeev

Differential Revision: https://reviews.llvm.org/D39742

llvm-svn: 318352

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp b/llvm/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp
index a637dd11f81..97959526447 100644
--- a/llvm/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp
+++ b/llvm/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp
@@ -27,11 +27,11 @@ Target &llvm::getThePPC64LETarget() {
 
 extern "C" void LLVMInitializePowerPCTargetInfo() {
   RegisterTarget<Triple::ppc, /*HasJIT=*/true> X(getThePPC32Target(), "ppc32",
-                                                 "PowerPC 32");
+                                                 "PowerPC 32", "PPC");
 
   RegisterTarget<Triple::ppc64, /*HasJIT=*/true> Y(getThePPC64Target(), "ppc64",
-                                                   "PowerPC 64");
+                                                   "PowerPC 64", "PPC");
 
   RegisterTarget<Triple::ppc64le, /*HasJIT=*/true> Z(
-      getThePPC64LETarget(), "ppc64le", "PowerPC 64 LE");
+      getThePPC64LETarget(), "ppc64le", "PowerPC 64 LE", "PPC");
 }