[AMDGPU] Fix -Wimplicit-fallthrough warnings. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307381 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AMDGPU/AMDGPUSubtarget.cpp b/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
index 1df3736..1bc5a52 100644 (file)
--- a/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
+++ b/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
@@ -298,18 +298,21 @@ bool AMDGPUSubtarget::makeLIDRangeMetadata(Instruction *I) const {
       case Intrinsic::amdgcn_workitem_id_x:
       case Intrinsic::r600_read_tidig_x:
         IdQuery = true;
+        LLVM_FALLTHROUGH;
       case Intrinsic::r600_read_local_size_x:
         Dim = 0;
         break;
       case Intrinsic::amdgcn_workitem_id_y:
       case Intrinsic::r600_read_tidig_y:
         IdQuery = true;
+        LLVM_FALLTHROUGH;
       case Intrinsic::r600_read_local_size_y:
         Dim = 1;
         break;
       case Intrinsic::amdgcn_workitem_id_z:
       case Intrinsic::r600_read_tidig_z:
         IdQuery = true;
+        LLVM_FALLTHROUGH;
       case Intrinsic::r600_read_local_size_z:
         Dim = 2;
         break;

diff --git a/lib/Target/AMDGPU/R600ControlFlowFinalizer.cpp b/lib/Target/AMDGPU/R600ControlFlowFinalizer.cpp
index 6993e8a..00cbd24 100644 (file)
--- a/lib/Target/AMDGPU/R600ControlFlowFinalizer.cpp
+++ b/lib/Target/AMDGPU/R600ControlFlowFinalizer.cpp
@@ -555,7 +555,7 @@ public:
             CFStack.pushBranch(AMDGPU::CF_PUSH_EG);
           } else
             CFStack.pushBranch(AMDGPU::CF_ALU_PUSH_BEFORE);
-
+          LLVM_FALLTHROUGH;
         case AMDGPU::CF_ALU:
           I = MI;
           AluClauses.push_back(MakeALUClause(MBB, I));

diff --git a/lib/Target/AMDGPU/SIFoldOperands.cpp b/lib/Target/AMDGPU/SIFoldOperands.cpp
index f391f67..3af242d 100644 (file)
--- a/lib/Target/AMDGPU/SIFoldOperands.cpp
+++ b/lib/Target/AMDGPU/SIFoldOperands.cpp
@@ -137,6 +137,7 @@ static bool isInlineConstantIfFolded(const SIInstrInfo *TII,
         = TII->get(IsF32 ? AMDGPU::V_MAD_F32 : AMDGPU::V_MAD_F16);
       return TII->isInlineConstant(OpToFold, MadDesc.OpInfo[OpNo].OperandType);
     }
+    return false;
   }
   default:
     return false;

diff --git a/lib/Target/AMDGPU/SIInstrInfo.cpp b/lib/Target/AMDGPU/SIInstrInfo.cpp
index 5a9089d..160f883 100644 (file)
--- a/lib/Target/AMDGPU/SIInstrInfo.cpp
+++ b/lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -2022,10 +2022,12 @@ MachineInstr *SIInstrInfo::convertToThreeAddress(MachineFunction::iterator &MBB,
     return nullptr;
   case AMDGPU::V_MAC_F16_e64:
     IsF16 = true;
+    LLVM_FALLTHROUGH;
   case AMDGPU::V_MAC_F32_e64:
     break;
   case AMDGPU::V_MAC_F16_e32:
     IsF16 = true;
+    LLVM_FALLTHROUGH;
   case AMDGPU::V_MAC_F32_e32: {
     int Src0Idx = AMDGPU::getNamedOperandIdx(MI.getOpcode(),
                                              AMDGPU::OpName::src0);