[AArch64] [ARM] Make a target-independent llvm.thread.pointer intrinsic.
Both AArch64 and ARM support llvm.<arch>.thread.pointer intrinsics that
just return the thread pointer. I have a pending patch that does the same
for SystemZ (D19054), and there are many more targets that could benefit
from one.
This patch merges the ARM and AArch64 intrinsics into a single target
independent one that will also be used by subsequent targets.
Differential Revision: http://reviews.llvm.org/D19098
llvm-svn: 266818
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index 12e269a..41d59b3 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -126,6 +126,10 @@
StoreLaneInts[fArgs.size() - 5], Tys);
return true;
}
+ if (Name == "aarch64.thread.pointer" || Name == "arm.thread.pointer") {
+ NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::thread_pointer);
+ return true;
+ }
break;
}
@@ -799,6 +803,12 @@
CI->eraseFromParent();
return;
}
+
+ case Intrinsic::thread_pointer: {
+ CI->replaceAllUsesWith(Builder.CreateCall(NewFn, {}));
+ CI->eraseFromParent();
+ return;
+ }
}
}