From: Justin Holewinski <jholewinski@nvidia.com>
Date: Mon, 1 Jul 2013 13:00:14 +0000 (+0000)
Subject: [NVPTX] Add support for module-scope inline asm
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=728af3d574895dd9e4bb5c418c7398297c4f39fe;p=oota-llvm.git

[NVPTX] Add support for module-scope inline asm

Since we were explicitly not calling AsmPrinter::doInitialization,
any module-scope inline asm was not being printed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185336 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
index 9662f4c3e24..93ba8d5ade6 100644
--- a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
+++ b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
@@ -1043,6 +1043,16 @@ bool NVPTXAsmPrinter::doInitialization(Module &M) {
   // Already commented out
   //bool Result = AsmPrinter::doInitialization(M);
 
+  // Emit module-level inline asm if it exists.
+  if (!M.getModuleInlineAsm().empty()) {
+    OutStreamer.AddComment("Start of file scope inline assembly");
+    OutStreamer.AddBlankLine();
+    OutStreamer.EmitRawText(StringRef(M.getModuleInlineAsm()));
+    OutStreamer.AddBlankLine();
+    OutStreamer.AddComment("End of file scope inline assembly");
+    OutStreamer.AddBlankLine();
+  }
+
   if (nvptxSubtarget.getDrvInterface() == NVPTX::CUDA)
     recordAndEmitFilenames(M);
 
diff --git a/test/CodeGen/NVPTX/module-inline-asm.ll b/test/CodeGen/NVPTX/module-inline-asm.ll
new file mode 100644
index 00000000000..cdbcf2013c0
--- /dev/null
+++ b/test/CodeGen/NVPTX/module-inline-asm.ll
@@ -0,0 +1,10 @@
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
+
+; CHECK: .global .b32 val;
+module asm ".global .b32 val;"
+
+define void @foo() {
+  ret void
+}