PTX: Add .address_size directive if PTX version >= 2.3
Patch by Wei-Ren Chen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133589 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PTX/PTXAsmPrinter.cpp b/lib/Target/PTX/PTXAsmPrinter.cpp
index 6f6fc29..855a092 100644
--- a/lib/Target/PTX/PTXAsmPrinter.cpp
+++ b/lib/Target/PTX/PTXAsmPrinter.cpp
@@ -163,6 +163,13 @@
OutStreamer.EmitRawText(Twine("\t.target " + ST.getTargetString() +
(ST.supportsDouble() ? ""
: ", map_f64_to_f32")));
+ // .address_size directive is optional, but it must immediately follow
+ // the .target directive if present within a module
+ if (ST.supportsPTX23()) {
+ std::string addrSize = ST.is64Bit() ? "64" : "32";
+ OutStreamer.EmitRawText(Twine("\t.address_size " + addrSize));
+ }
+
OutStreamer.AddBlankLine();
// declare global variables
diff --git a/test/CodeGen/PTX/options.ll b/test/CodeGen/PTX/options.ll
index 92effa6..0fb6602 100644
--- a/test/CodeGen/PTX/options.ll
+++ b/test/CodeGen/PTX/options.ll
@@ -5,6 +5,8 @@
; RUN: llc < %s -march=ptx32 -mattr=sm10 | grep ".target sm_10"
; RUN: llc < %s -march=ptx32 -mattr=sm13 | grep ".target sm_13"
; RUN: llc < %s -march=ptx32 -mattr=sm20 | grep ".target sm_20"
+; RUN: llc < %s -march=ptx32 -mattr=ptx23 | grep ".address_size 32"
+; RUN: llc < %s -march=ptx64 -mattr=ptx23 | grep ".address_size 64"
define ptx_device void @t1() {
ret void