[llvm] r326526 - AMDGPU/GlobalISel: Define instruction mapping for G_FADD

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Thu Mar  1 17:22:13 2018
New Revision: 326526

URL: http://llvm.org/viewvc/llvm-project?rev=326526&view=rev
Log:
AMDGPU/GlobalISel: Define instruction mapping for G_FADD

Patch by Tom Stellard

Added:
    llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fadd.mir
Modified:
    llvm/trunk/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp

Modified: llvm/trunk/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp?rev=326526&r1=326525&r2=326526&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp Thu Mar  1 17:22:13 2018
@@ -290,8 +290,10 @@ AMDGPURegisterBankInfo::getInstrMapping(
   case AMDGPU::G_SHL:
     if (isSALUMapping(MI))
       return getDefaultMappingSOP(MI);
+    // Fall-through
+
+  case AMDGPU::G_FADD:
     return getDefaultMappingVOP(MI);
-    break;
   case AMDGPU::G_IMPLICIT_DEF: {
     unsigned Size = MRI.getType(MI.getOperand(0).getReg()).getSizeInBits();
     OpdsMapping[0] = AMDGPU::getValueMapping(AMDGPU::SGPRRegBankID, Size);

Added: llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fadd.mir
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fadd.mir?rev=326526&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fadd.mir (added)
+++ llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fadd.mir Thu Mar  1 17:22:13 2018
@@ -0,0 +1,69 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect -global-isel %s -verify-machineinstrs -o - -regbankselect-fast | FileCheck %s
+# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect -global-isel %s -verify-machineinstrs -o - -regbankselect-greedy | FileCheck %s
+
+---
+name: fadd_ss
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $sgpr1
+    ; CHECK-LABEL: name: fadd_ss
+    ; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
+    ; CHECK: [[COPY1:%[0-9]+]]:sgpr(s32) = COPY $sgpr1
+    ; CHECK: [[COPY2:%[0-9]+]]:vgpr(s32) = COPY [[COPY1]](s32)
+    ; CHECK: [[FADD:%[0-9]+]]:vgpr(s32) = G_FADD [[COPY]], [[COPY2]]
+    %0:_(s32) = COPY $sgpr0
+    %1:_(s32) = COPY $sgpr1
+    %2:_(s32) = G_FADD %0, %1
+...
+
+---
+name: fadd_sv
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0
+    ; CHECK-LABEL: name: fadd_sv
+    ; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
+    ; CHECK: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; CHECK: [[FADD:%[0-9]+]]:vgpr(s32) = G_FADD [[COPY]], [[COPY1]]
+    %0:_(s32) = COPY $sgpr0
+    %1:_(s32) = COPY $vgpr0
+    %2:_(s32) = G_FADD %0, %1
+...
+
+---
+name: fadd_vs
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0
+    ; CHECK-LABEL: name: fadd_vs
+    ; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; CHECK: [[COPY1:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
+    ; CHECK: [[COPY2:%[0-9]+]]:vgpr(s32) = COPY [[COPY1]](s32)
+    ; CHECK: [[FADD:%[0-9]+]]:vgpr(s32) = G_FADD [[COPY]], [[COPY2]]
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s32) = COPY $sgpr0
+    %2:_(s32) = G_FADD %0, %1
+...
+
+---
+name: fadd_vv
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; CHECK-LABEL: name: fadd_vv
+    ; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; CHECK: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; CHECK: [[FADD:%[0-9]+]]:vgpr(s32) = G_FADD [[COPY]], [[COPY1]]
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s32) = COPY $vgpr1
+    %2:_(s32) = G_FADD %0, %1
+...