[llvm] r258352 - AMDGPU/SI: Promote i1 SETCC operations

[Tom Stellard via llvm-commits]

Author: tstellar
Date: Wed Jan 20 15:48:24 2016
New Revision: 258352

URL: http://llvm.org/viewvc/llvm-project?rev=258352&view=rev
Log:
AMDGPU/SI: Promote i1 SETCC operations

Summary:
While working on uniform branching, I've hit a few cases where we emit
i1 SETCC operations.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D16233

Modified:
    llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
    llvm/trunk/test/CodeGen/AMDGPU/setcc.ll

Modified: llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp?rev=258352&r1=258351&r2=258352&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp Wed Jan 20 15:48:24 2016
@@ -103,6 +103,7 @@ SITargetLowering::SITargetLowering(Targe
   setOperationAction(ISD::SELECT_CC, MVT::i64, Expand);
   setOperationAction(ISD::SELECT_CC, MVT::f64, Expand);
 
+  setOperationAction(ISD::SETCC, MVT::i1, Promote);
   setOperationAction(ISD::SETCC, MVT::v2i1, Expand);
   setOperationAction(ISD::SETCC, MVT::v4i1, Expand);
 

Modified: llvm/trunk/test/CodeGen/AMDGPU/setcc.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AMDGPU/setcc.ll?rev=258352&r1=258351&r2=258352&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/setcc.ll (original)
+++ llvm/trunk/test/CodeGen/AMDGPU/setcc.ll Wed Jan 20 15:48:24 2016
@@ -389,3 +389,23 @@ if:
 endif:
   ret void
 }
+
+; FUNC-LABEL: setcc-i1-and-xor
+; SI-DAG: v_cmp_le_f32_e64 [[A:s\[[0-9]+:[0-9]+\]]], 0, s{{[0-9]+}}
+; SI-DAG: v_cmp_ge_f32_e64 [[B:s\[[0-9]+:[0-9]+\]]], 1.0, s{{[0-9]+}}
+; SI: s_and_b64 s[2:3], [[A]], [[B]]
+define void @setcc-i1-and-xor(i32 addrspace(1)* %out, float %cond) #0 {
+bb0:
+  %tmp5 = fcmp oge float %cond, 0.000000e+00
+  %tmp7 = fcmp ole float %cond, 1.000000e+00
+  %tmp9 = and i1 %tmp5, %tmp7
+  %tmp11 = xor i1 %tmp9, 1
+  br i1 %tmp11, label %bb2, label %bb1
+
+bb1:
+  store i32 0, i32 addrspace(1)* %out
+  br label %bb2
+
+bb2:
+  ret void
+}