[mips][msa] Added support for MSA registers to copyPhysReg

llvm-svn: 191512

diff --git a/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp b/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
index 9c31254..d3e6416 100644 (file)
--- a/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
+++ b/llvm/lib/Target/Mips/MipsSEInstrInfo.cpp
@@ -154,6 +154,10 @@ void MipsSEInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
     else if (Mips::FGR64RegClass.contains(DestReg))
       Opc = Mips::DMTC1;
   }
+  else if (Mips::MSA128BRegClass.contains(DestReg)) { // Copy to MSA reg
+    if (Mips::MSA128BRegClass.contains(SrcReg))
+      Opc = Mips::MOVE_V;
+  }
 
   assert(Opc && "Cannot copy registers");
 

diff --git a/llvm/test/CodeGen/Mips/msa/llvm-stress-s1935737938.ll b/llvm/test/CodeGen/Mips/msa/llvm-stress-s1935737938.ll
new file mode 100644 (file)
index 0000000..23675f5
--- /dev/null
+++ b/llvm/test/CodeGen/Mips/msa/llvm-stress-s1935737938.ll
@@ -0,0 +1,136 @@
+; RUN: llc -march=mips < %s
+; RUN: llc -march=mips -mattr=+msa,+fp64 < %s
+
+; This test originally failed for MSA with a
+; `Opc && "Cannot copy registers"' assertion.
+; It should at least successfully build.
+
+define void @autogen_SD1935737938(i8*, i32*, i64*, i32, i64, i8) {
+BB:
+  %A4 = alloca i64
+  %A3 = alloca <4 x i32>
+  %A2 = alloca i64
+  %A1 = alloca i32
+  %A = alloca <2 x i64>
+  %L = load i8* %0
+  store i8 -1, i8* %0
+  %E = extractelement <2 x i32> zeroinitializer, i32 0
+  %Shuff = shufflevector <2 x i32> zeroinitializer, <2 x i32> zeroinitializer, <2 x i32> <i32 1, i32 3>
+  %I = insertelement <1 x i64> <i64 -1>, i64 286689, i32 0
+  %B = lshr i8 %L, -69
+  %ZE = fpext float 0xBF2AA5FE80000000 to double
+  %Sl = select i1 true, <1 x i64> <i64 -1>, <1 x i64> <i64 -1>
+  %L5 = load i8* %0
+  store i8 -69, i8* %0
+  %E6 = extractelement <16 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, i32 14
+  %Shuff7 = shufflevector <2 x i32> zeroinitializer, <2 x i32> zeroinitializer, <2 x i32> <i32 1, i32 3>
+  %I8 = insertelement <2 x i32> zeroinitializer, i32 135673, i32 1
+  %B9 = udiv i8 %B, %B
+  %FC = uitofp i32 %3 to double
+  %Sl10 = select i1 true, <1 x i1> zeroinitializer, <1 x i1> zeroinitializer
+  %Cmp = icmp ne <1 x i64> %I, <i64 -1>
+  %L11 = load i8* %0
+  store i8 %L11, i8* %0
+  %E12 = extractelement <1 x i64> <i64 -1>, i32 0
+  %Shuff13 = shufflevector <1 x i64> %Sl, <1 x i64> <i64 -1>, <1 x i32> <i32 1>
+  %I14 = insertelement <1 x i64> %I, i64 303290, i32 0
+  %B15 = frem float 0.000000e+00, 0.000000e+00
+  %Sl16 = select i1 true, <1 x i1> %Cmp, <1 x i1> zeroinitializer
+  %Cmp17 = fcmp one float 0xBD946F9840000000, %B15
+  br label %CF74
+
+CF74:                                             ; preds = %CF74, %CF80, %CF76, %BB
+  %L18 = load i8* %0
+  store i8 -69, i8* %0
+  %E19 = extractelement <1 x i64> %Sl, i32 0
+  %Shuff20 = shufflevector <8 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, <8 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, <8 x i32> <i32 12, i32 14, i32 0, i32 2, i32 4, i32 6, i32 8, i32 10>
+  %I21 = insertelement <2 x i32> %Shuff, i32 135673, i32 0
+  %B22 = urem i32 135673, %3
+  %FC23 = sitofp i8 %L to float
+  %Sl24 = select i1 true, i8 %B, i8 %L18
+  %L25 = load i8* %0
+  store i8 %L, i8* %0
+  %E26 = extractelement <2 x i32> %Shuff, i32 1
+  %Shuff27 = shufflevector <2 x i32> zeroinitializer, <2 x i32> zeroinitializer, <2 x i32> <i32 2, i32 0>
+  %I28 = insertelement <16 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, i64 %E12, i32 8
+  %B29 = frem double %ZE, 0x235104F0E94F406E
+  %Tr = trunc i64 286689 to i8
+  %Sl30 = select i1 true, float 0x45B13EA500000000, float %B15
+  %Cmp31 = icmp eq i32 %B22, %B22
+  br i1 %Cmp31, label %CF74, label %CF80
+
+CF80:                                             ; preds = %CF74
+  %L32 = load i8* %0
+  store i8 -1, i8* %0
+  %E33 = extractelement <2 x i32> zeroinitializer, i32 1
+  %Shuff34 = shufflevector <1 x i64> %Shuff13, <1 x i64> <i64 -1>, <1 x i32> zeroinitializer
+  %I35 = insertelement <8 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, i8 -1, i32 0
+  %FC36 = sitofp <1 x i1> %Cmp to <1 x float>
+  %Sl37 = select i1 true, <8 x i8> %Shuff20, <8 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
+  %Cmp38 = icmp sgt <2 x i32> %I21, %Shuff27
+  %L39 = load i8* %0
+  store i8 %Sl24, i8* %0
+  %E40 = extractelement <8 x i64> zeroinitializer, i32 1
+  %Shuff41 = shufflevector <2 x i1> zeroinitializer, <2 x i1> %Cmp38, <2 x i32> <i32 0, i32 2>
+  %I42 = insertelement <4 x i32> zeroinitializer, i32 414573, i32 2
+  %B43 = srem i8 %L5, %L39
+  %Sl44 = select i1 %Cmp17, i8 %L, i8 %L
+  %Cmp45 = fcmp une float 0x3AFCE1A0C0000000, 0.000000e+00
+  br i1 %Cmp45, label %CF74, label %CF76
+
+CF76:                                             ; preds = %CF80
+  %L46 = load i8* %0
+  store i8 %L39, i8* %0
+  %E47 = extractelement <2 x i32> %Shuff27, i32 0
+  %Shuff48 = shufflevector <1 x i1> %Sl10, <1 x i1> %Sl10, <1 x i32> <i32 1>
+  %I49 = insertelement <1 x i64> <i64 -1>, i64 %E12, i32 0
+  %FC50 = fptosi double 0x235104F0E94F406E to i32
+  %Sl51 = select i1 %Cmp17, <16 x i64> %I28, <16 x i64> %I28
+  %Cmp52 = icmp ne i8 %Tr, %Sl24
+  br i1 %Cmp52, label %CF74, label %CF75
+
+CF75:                                             ; preds = %CF75, %CF76
+  %L53 = load i8* %0
+  store i8 %L18, i8* %0
+  %E54 = extractelement <8 x i8> %Shuff20, i32 5
+  %Shuff55 = shufflevector <2 x i32> %Shuff, <2 x i32> zeroinitializer, <2 x i32> <i32 0, i32 2>
+  %I56 = insertelement <4 x i32> %I42, i32 %B22, i32 2
+  %B57 = sub i64 %E40, %E6
+  %Sl58 = select i1 true, i64 303290, i64 %E40
+  %Cmp59 = icmp slt i64 %E40, %E6
+  br i1 %Cmp59, label %CF75, label %CF78
+
+CF78:                                             ; preds = %CF75
+  %L60 = load i8* %0
+  store i8 -69, i8* %0
+  %E61 = extractelement <2 x i32> zeroinitializer, i32 0
+  %Shuff62 = shufflevector <2 x i32> %Shuff7, <2 x i32> %I21, <2 x i32> <i32 1, i32 3>
+  %I63 = insertelement <1 x i1> %Sl16, i1 %Cmp45, i32 0
+  %B64 = and i8 %Sl44, -69
+  %ZE65 = zext <1 x i1> %Shuff48 to <1 x i64>
+  %Sl66 = select i1 true, <1 x i64> %I, <1 x i64> %I49
+  %Cmp67 = icmp ugt i64 286689, %E40
+  br label %CF
+
+CF:                                               ; preds = %CF, %CF78
+  %L68 = load i8* %0
+  store i64 %B57, i64* %2
+  %E69 = extractelement <2 x i1> %Shuff41, i32 1
+  br i1 %E69, label %CF, label %CF77
+
+CF77:                                             ; preds = %CF77, %CF
+  %Shuff70 = shufflevector <1 x i64> %Shuff34, <1 x i64> <i64 -1>, <1 x i32> zeroinitializer
+  %I71 = insertelement <2 x i32> %Shuff, i32 %E26, i32 0
+  %Se = sext i8 %L60 to i32
+  %Sl72 = select i1 %Cmp45, <2 x i32> %Shuff62, <2 x i32> %I71
+  %Cmp73 = fcmp ugt double 0x235104F0E94F406E, 0x235104F0E94F406E
+  br i1 %Cmp73, label %CF77, label %CF79
+
+CF79:                                             ; preds = %CF77
+  store i8 %L18, i8* %0
+  store i8 %E54, i8* %0
+  store i8 %L39, i8* %0
+  store i8 %L39, i8* %0
+  store i8 %B, i8* %0
+  ret void
+}