commit 90f9ec0dff7592c635e719909d288b5de04d224b
author Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Jun 05 03:00:09 2013 +0000
committer Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Jun 05 03:00:09 2013 +0000
tree f33a319a0f5dc59affb368aff2344547c6a495ce
parent 211c8ddb5b500ed84833751363d0cfe1115f4dd3

Heed ABIArgInfo::getInReg() for return values.

The 'inreg' attribute can also be applied to function return values in
LLVM IR. The SPARC v9 backend is using the flag when returning structs
containing 32-bit floats.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183290 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGCall.cpp

diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 9a8edcc..3c079cd 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -1054,8 +1054,11 @@
       RetAttrs.addAttribute(llvm::Attribute::SExt);
     else if (RetTy->hasUnsignedIntegerRepresentation())
       RetAttrs.addAttribute(llvm::Attribute::ZExt);
-    break;
+    // FALL THROUGH
   case ABIArgInfo::Direct:
+    if (RetAI.getInReg())
+      RetAttrs.addAttribute(llvm::Attribute::InReg);
+    break;
   case ABIArgInfo::Ignore:
     break;
 

test/CodeGen/sparcv9-abi.c

diff --git a/test/CodeGen/sparcv9-abi.c b/test/CodeGen/sparcv9-abi.c
index 41b06dd..b4c7d68 100644
--- a/test/CodeGen/sparcv9-abi.c
+++ b/test/CodeGen/sparcv9-abi.c
@@ -73,8 +73,7 @@
   float b;
 };
 
-// CHECK: @f_mixed(i32 inreg %x.coerce0, float inreg %x.coerce1)
-// FIXME: The return value should also be 'inreg'.
+// CHECK: define inreg %struct.mixed @f_mixed(i32 inreg %x.coerce0, float inreg %x.coerce1)
 struct mixed f_mixed(struct mixed x) {
   x.a += 1;
   return x;