From 52b2604d062e817bf1be8162b3ccf1999c27e79f Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 1 Jul 2019 13:40:18 +0000
Subject: [PATCH] AMDGPU/GlobalISel: Fix RegBankSelect for G_FCANONICALIZE

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364768 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp  |  1 +
 .../regbankselect-fcanonicalize.mir           | 35 +++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 test/CodeGen/AMDGPU/GlobalISel/regbankselect-fcanonicalize.mir

diff --git a/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp b/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
index 9eb2d273136..37735bab016 100644
--- a/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
+++ b/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
@@ -1256,6 +1256,7 @@ AMDGPURegisterBankInfo::getInstrMapping(const MachineInstr &MI) const {
   case AMDGPU::G_FPEXT:
   case AMDGPU::G_FEXP2:
   case AMDGPU::G_FLOG2:
+  case AMDGPU::G_FCANONICALIZE:
   case AMDGPU::G_INTRINSIC_TRUNC:
   case AMDGPU::G_INTRINSIC_ROUND:
     return getDefaultMappingVOP(MI);
diff --git a/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fcanonicalize.mir b/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fcanonicalize.mir
new file mode 100644
index 00000000000..2f8786740f1
--- /dev/null
+++ b/test/CodeGen/AMDGPU/GlobalISel/regbankselect-fcanonicalize.mir
@@ -0,0 +1,35 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -march=amdgcn -run-pass=regbankselect -regbankselect-fast -verify-machineinstrs -o - %s | FileCheck %s
+# RUN: llc -march=amdgcn -run-pass=regbankselect -regbankselect-greedy -verify-machineinstrs -o - %s | FileCheck %s
+
+---
+name: fcanonicalize_s
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0_sgpr1
+    ; CHECK-LABEL: name: fcanonicalize_s
+    ; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
+    ; CHECK: [[FCANONICALIZE:%[0-9]+]]:vgpr(s32) = G_FCANONICALIZE [[COPY]]
+    ; CHECK: $vgpr0 = COPY [[FCANONICALIZE]](s32)
+    %0:_(s32) = COPY $sgpr0
+    %1:_(s32) = G_FCANONICALIZE %0
+    $vgpr0 = COPY %1
+...
+
+---
+name: fcanonicalize_v
+legalized: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1
+    ; CHECK-LABEL: name: fcanonicalize_v
+    ; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; CHECK: [[FCANONICALIZE:%[0-9]+]]:vgpr(s32) = G_FCANONICALIZE [[COPY]]
+    ; CHECK: $vgpr0 = COPY [[FCANONICALIZE]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s32) = G_FCANONICALIZE %0
+    $vgpr0 = COPY %1
+...
-- 
2.50.1