[llvm] r349608 - AMDGPU/GlobalISel: Regbankselect for fsub

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Wed Dec 19 01:07:58 2018
New Revision: 349608

URL: http://llvm.org/viewvc/llvm-project?rev=349608&view=rev
Log:
AMDGPU/GlobalISel: Regbankselect for fsub

Added:
    llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fsub.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=349608&r1=349607&r2=349608&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp Wed Dec 19 01:07:58 2018
@@ -354,6 +354,7 @@ AMDGPURegisterBankInfo::getInstrMapping(
     LLVM_FALLTHROUGH;
 
   case AMDGPU::G_FADD:
+  case AMDGPU::G_FSUB:
   case AMDGPU::G_FPTOSI:
   case AMDGPU::G_FPTOUI:
   case AMDGPU::G_FMUL:

Added: llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fsub.mir
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fsub.mir?rev=349608&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fsub.mir (added)
+++ llvm/trunk/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fsub.mir Wed Dec 19 01:07:58 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 %s -verify-machineinstrs -o - -regbankselect-fast | FileCheck %s
+# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect %s -verify-machineinstrs -o - -regbankselect-greedy | FileCheck %s
+
+---
+name: fsub_ss
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $sgpr1
+    ; CHECK-LABEL: name: fsub_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: [[FSUB:%[0-9]+]]:vgpr(s32) = G_FSUB [[COPY]], [[COPY2]]
+    %0:_(s32) = COPY $sgpr0
+    %1:_(s32) = COPY $sgpr1
+    %2:_(s32) = G_FSUB %0, %1
+...
+
+---
+name: fsub_sv
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0
+    ; CHECK-LABEL: name: fsub_sv
+    ; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
+    ; CHECK: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; CHECK: [[FSUB:%[0-9]+]]:vgpr(s32) = G_FSUB [[COPY]], [[COPY1]]
+    %0:_(s32) = COPY $sgpr0
+    %1:_(s32) = COPY $vgpr0
+    %2:_(s32) = G_FSUB %0, %1
+...
+
+---
+name: fsub_vs
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0
+    ; CHECK-LABEL: name: fsub_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: [[FSUB:%[0-9]+]]:vgpr(s32) = G_FSUB [[COPY]], [[COPY2]]
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s32) = COPY $sgpr0
+    %2:_(s32) = G_FSUB %0, %1
+...
+
+---
+name: fsub_vv
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; CHECK-LABEL: name: fsub_vv
+    ; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; CHECK: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; CHECK: [[FSUB:%[0-9]+]]:vgpr(s32) = G_FSUB [[COPY]], [[COPY1]]
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s32) = COPY $vgpr1
+    %2:_(s32) = G_FSUB %0, %1
+...