AMDGPU/GlobalISel: Define instruction mapping for G_FPTOUI

Patch by Tom Stellard

llvm-svn: 326533

diff --git a/llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
index 7bae7ca..958d113 100644 (file)
--- a/llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
@@ -293,6 +293,7 @@ AMDGPURegisterBankInfo::getInstrMapping(const MachineInstr &MI) const {
     // Fall-through
 
   case AMDGPU::G_FADD:
+  case AMDGPU::G_FPTOUI:
   case AMDGPU::G_FMUL:
     return getDefaultMappingVOP(MI);
   case AMDGPU::G_IMPLICIT_DEF: {

diff --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fptoui.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fptoui.mir
new file mode 100644 (file)
index 0000000..0f5f268
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fptoui.mir
@@ -0,0 +1,31 @@
+# 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: fptoui_s
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0
+    ; CHECK-LABEL: name: fptoui_s
+    ; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
+    ; CHECK: [[FPTOUI:%[0-9]+]]:vgpr(s32) = G_FPTOUI [[COPY]](s32)
+    %0:_(s32) = COPY $sgpr0
+    %1:_(s32) = G_FPTOUI %0
+...
+
+---
+name: fptoui_v
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0
+    ; CHECK-LABEL: name: fptoui_v
+    ; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; CHECK: [[FPTOUI:%[0-9]+]]:vgpr(s32) = G_FPTOUI [[COPY]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s32) = G_FPTOUI %0
+...