[llvm] r187202 - Add a target legalize hook for SplitVectorOperand (again)

[Justin Holewinski]

Author: jholewinski
Date: Fri Jul 26 08:28:29 2013
New Revision: 187202

URL: http://llvm.org/viewvc/llvm-project?rev=187202&view=rev
Log:
Add a target legalize hook for SplitVectorOperand (again)

CustomLowerNode was not being called during SplitVectorOperand,
meaning custom legalization could not be used by targets.

This also adds a test case for NVPTX that depends on this custom
legalization.

Differential Revision: http://llvm-reviews.chandlerc.com/D1195

Attempt to fix the buildbots by making the X86 test I just added platform independent

Added:
    llvm/trunk/test/CodeGen/NVPTX/vector-stores.ll
    llvm/trunk/test/CodeGen/X86/floor-soft-float.ll
Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp?rev=187202&r1=187201&r2=187202&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp Fri Jul 26 08:28:29 2013
@@ -1031,6 +1031,10 @@ bool DAGTypeLegalizer::SplitVectorOperan
         dbgs() << "\n");
   SDValue Res = SDValue();
 
+  // See if the target wants to custom split this node.
+  if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false))
+    return false;
+
   if (Res.getNode() == 0) {
     switch (N->getOpcode()) {
     default:

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=187202&r1=187201&r2=187202&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Fri Jul 26 08:28:29 2013
@@ -996,7 +996,7 @@ void X86TargetLowering::resetOperationAc
     setLoadExtAction(ISD::EXTLOAD,              MVT::v2f32, Legal);
   }
 
-  if (Subtarget->hasSSE41()) {
+  if (!TM.Options.UseSoftFloat && Subtarget->hasSSE41()) {
     setOperationAction(ISD::FFLOOR,             MVT::f32,   Legal);
     setOperationAction(ISD::FCEIL,              MVT::f32,   Legal);
     setOperationAction(ISD::FTRUNC,             MVT::f32,   Legal);

Added: llvm/trunk/test/CodeGen/NVPTX/vector-stores.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/NVPTX/vector-stores.ll?rev=187202&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/NVPTX/vector-stores.ll (added)
+++ llvm/trunk/test/CodeGen/NVPTX/vector-stores.ll Fri Jul 26 08:28:29 2013
@@ -0,0 +1,30 @@
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
+
+; CHECK: .visible .func foo1
+; CHECK: st.v2.f32
+define void @foo1(<2 x float> %val, <2 x float>* %ptr) {
+  store <2 x float> %val, <2 x float>* %ptr
+  ret void
+}
+
+; CHECK: .visible .func foo2
+; CHECK: st.v4.f32
+define void @foo2(<4 x float> %val, <4 x float>* %ptr) {
+  store <4 x float> %val, <4 x float>* %ptr
+  ret void
+}
+
+; CHECK: .visible .func foo3
+; CHECK: st.v2.u32
+define void @foo3(<2 x i32> %val, <2 x i32>* %ptr) {
+  store <2 x i32> %val, <2 x i32>* %ptr
+  ret void
+}
+
+; CHECK: .visible .func foo4
+; CHECK: st.v4.u32
+define void @foo4(<4 x i32> %val, <4 x i32>* %ptr) {
+  store <4 x i32> %val, <4 x i32>* %ptr
+  ret void
+}
+

Added: llvm/trunk/test/CodeGen/X86/floor-soft-float.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/floor-soft-float.ll?rev=187202&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/floor-soft-float.ll (added)
+++ llvm/trunk/test/CodeGen/X86/floor-soft-float.ll Fri Jul 26 08:28:29 2013
@@ -0,0 +1,13 @@
+; RUN: llc < %s -march=x86-64 -mattr=+sse41,-avx -soft-float=0 | FileCheck %s --check-prefix=CHECK-HARD-FLOAT
+; RUN: llc < %s -march=x86-64 -mattr=+sse41,-avx -soft-float=1 | FileCheck %s --check-prefix=CHECK-SOFT-FLOAT
+
+target triple = "x86_64-unknown-linux-gnu"
+
+declare float @llvm.floor.f32(float)
+
+; CHECK-SOFT-FLOAT: callq floorf
+; CHECK-HARD-FLOAT: roundss $1, %xmm0, %xmm0
+define float @myfloor(float %a) {
+  %val = tail call float @llvm.floor.f32(float %a)
+  ret float %val
+}