From: Reed Kotler <rkotler@mips.com>
Date: Sun, 15 Sep 2013 02:09:08 +0000 (+0000)
Subject: Expand the mask capability for deciding which functions are mips16 and mips32
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6febf857f690665bc33b84c957cdefb39a27f63d;p=oota-llvm.git

Expand the mask capability for deciding which functions are mips16 and mips32
so it can be better used for general interoperability testing between mips32
and mips16.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190762 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/Mips/MipsOs16.cpp b/lib/Target/Mips/MipsOs16.cpp
index 5f9b60c6608..49c73b56142 100644
--- a/lib/Target/Mips/MipsOs16.cpp
+++ b/lib/Target/Mips/MipsOs16.cpp
@@ -103,8 +103,9 @@ bool MipsOs16::runOnModule(Module &M) {
     if (F->isDeclaration()) continue;
     DEBUG(dbgs() << "Working on " << F->getName() << "\n");
     if (usingMask) {
-      if ((functionIndex < Mips32FunctionMask.length()) &&
-          (Mips32FunctionMask[functionIndex] == '1')) {
+      if (functionIndex == Mips32FunctionMask.length())
+        functionIndex = 0;
+      if (Mips32FunctionMask[functionIndex] == '1') {
         DEBUG(dbgs() << "mask forced mips32: " << F->getName() << "\n");
         F->addFnAttr("nomips16");
       }
diff --git a/test/CodeGen/Mips/fp16mix.ll b/test/CodeGen/Mips/fp16mix.ll
new file mode 100644
index 00000000000..73b11562f40
--- /dev/null
+++ b/test/CodeGen/Mips/fp16mix.ll
@@ -0,0 +1,73 @@
+; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static -mips32-function-mask=10 -mips-os16 < %s | FileCheck %s -check-prefix=fmask1
+
+; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips16 -soft-float -mips16-hard-float -relocation-model=static -mips32-function-mask=01 -mips-os16 < %s | FileCheck %s -check-prefix=fmask2 
+
+; Function Attrs: nounwind optsize readnone
+define void @foo1()  {
+entry:
+  ret void
+; fmask1: .ent foo1
+; fmask1: .set	noreorder
+; fmask1: .set	nomacro
+; fmask1: .set	noat
+; fmask1: .set	at
+; fmask1: .set	macro
+; fmask1: .set	reorder
+; fmask1: .end	foo1
+; fmask2: .ent	foo1
+; fmask2: save	{{.*}}
+; fmask2: .end	foo1
+}
+
+; Function Attrs: nounwind optsize readnone
+define void @foo2()  {
+entry:
+  ret void
+; fmask2: .ent foo2
+; fmask2: .set	noreorder
+; fmask2: .set	nomacro
+; fmask2: .set	noat
+; fmask2: .set	at
+; fmask2: .set	macro
+; fmask2: .set	reorder
+; fmask2: .end	foo2
+; fmask1: .ent	foo2
+; fmask1: save	{{.*}}
+; fmask1: .end	foo2
+}
+
+; Function Attrs: nounwind optsize readnone
+define void @foo3()  {
+entry:
+  ret void
+; fmask1: .ent foo3
+; fmask1: .set	noreorder
+; fmask1: .set	nomacro
+; fmask1: .set	noat
+; fmask1: .set	at
+; fmask1: .set	macro
+; fmask1: .set	reorder
+; fmask1: .end	foo3
+; fmask2:  .ent	foo3
+; fmask2:  save	{{.*}}
+; fmask2:  .end	foo3
+}
+
+; Function Attrs: nounwind optsize readnone
+define void @foo4()  {
+entry:
+  ret void
+; fmask2: .ent foo4
+; fmask2: .set	noreorder
+; fmask2: .set	nomacro
+; fmask2: .set	noat
+; fmask2: .set	at
+; fmask2: .set	macro
+; fmask2: .set	reorder
+; fmask2: .end	foo4
+; fmask1: .ent	foo4
+; fmask1: save	{{.*}}
+; fmask1: .end	foo4
+}
+
+