From f84792ad48384d0bc27de3a863a3bc07bb540575 Mon Sep 17 00:00:00 2001
From: Simon Atanasyan <simon@atanasyan.com>
Date: Wed, 25 Dec 2013 17:00:27 +0000
Subject: [PATCH] [Mips] Does not take in account 'use-soft-float' attribute's
 value when consider to generate stubs for mips16 hard-float mode.

The patch reviewed by Reed Kotler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198019 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Mips/Mips16ISelLowering.cpp |  3 +-
 test/CodeGen/Mips/mips16-hf-attr.ll    | 45 ++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 2 deletions(-)
 create mode 100644 test/CodeGen/Mips/mips16-hf-attr.ll

diff --git a/lib/Target/Mips/Mips16ISelLowering.cpp b/lib/Target/Mips/Mips16ISelLowering.cpp
index 61d8bb8e558..c4fcdf8dba3 100644
--- a/lib/Target/Mips/Mips16ISelLowering.cpp
+++ b/lib/Target/Mips/Mips16ISelLowering.cpp
@@ -429,8 +429,7 @@ getOpndList(SmallVectorImpl<SDValue> &Ops,
   const char* Mips16HelperFunction = 0;
   bool NeedMips16Helper = false;
 
-  if (getTargetMachine().Options.UseSoftFloat &&
-      Subtarget->inMips16HardFloat()) {
+  if (Subtarget->inMips16HardFloat()) {
     //
     // currently we don't have symbols tagged with the mips16 or mips32
     // qualifier so we will assume that we don't know what kind it is.
diff --git a/test/CodeGen/Mips/mips16-hf-attr.ll b/test/CodeGen/Mips/mips16-hf-attr.ll
new file mode 100644
index 00000000000..d9ad6295bef
--- /dev/null
+++ b/test/CodeGen/Mips/mips16-hf-attr.ll
@@ -0,0 +1,45 @@
+; Check that stubs generation for mips16 hard-float mode does not depend
+; on the function 'use-soft-float' attribute's value.
+; RUN: llc -mtriple=mipsel-linux-gnu -march=mipsel \
+; RUN:     -mcpu=mips16 -relocation-model=pic < %s | FileCheck %s
+
+define void @bar_sf() #0 {
+; CHECK: bar_sf:
+entry:
+  %call1 = call float @foo(float 1.000000e+00)
+; CHECK: lw $2, %call16(foo)($3)
+; CHECK: lw $5, %got(__mips16_call_stub_sf_1)($3)
+  ret void
+}
+
+define void @bar_hf() #1 {
+; CHECK: bar_hf:
+entry:
+  %call1 = call float @foo(float 1.000000e+00)
+; CHECK: lw $2, %call16(foo)($3)
+; CHECK: lw $5, %got(__mips16_call_stub_sf_1)($3)
+  ret void
+}
+
+declare float @foo(float) #2
+
+attributes #0 = {
+  nounwind
+  "less-precise-fpmad"="false" "no-frame-pointer-elim"="true"
+  "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false"
+  "no-nans-fp-math"="false" "stack-protector-buffer-size"="8"
+  "unsafe-fp-math"="false" "use-soft-float"="false"
+}
+attributes #1 = {
+  nounwind
+  "less-precise-fpmad"="false" "no-frame-pointer-elim"="true"
+  "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false"
+  "no-nans-fp-math"="false" "stack-protector-buffer-size"="8"
+  "unsafe-fp-math"="false" "use-soft-float"="true"
+}
+attributes #2 = {
+  "less-precise-fpmad"="false" "no-frame-pointer-elim"="true"
+  "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false"
+  "no-nans-fp-math"="false" "stack-protector-buffer-size"="8"
+  "unsafe-fp-math"="false" "use-soft-float"="true"
+}