commit 0a5e4eb77669253af615d4b32567897bba23642f
author Petar Avramovic <Petar.Avramovic@rt-rk.com> Tue Dec 18 15:59:51 2018 +0000
committer Petar Avramovic <Petar.Avramovic@rt-rk.com> Tue Dec 18 15:59:51 2018 +0000
tree a09ddb72455276b9bdb78cb36cda0fb29809e456
parent 0d38e4fd2c0ed5d9a579cf40e2ab8634f9a779f6

[MIPS GlobalISel] Select G_SDIV, G_UDIV, G_SREM and G_UREM

Add support for s64 libcalls for G_SDIV, G_UDIV, G_SREM and G_UREM
and use integer type of correct size when creating arguments for
CLI.lowerCall.
Select G_SDIV, G_UDIV, G_SREM and G_UREM for types s8, s16, s32 and s64
on MIPS32.

Differential Revision: https://reviews.llvm.org/D55651

llvm-svn: 349499

llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp

diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 3d3f0e8..266409d 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -88,17 +88,17 @@
 static RTLIB::Libcall getRTLibDesc(unsigned Opcode, unsigned Size) {
   switch (Opcode) {
   case TargetOpcode::G_SDIV:
-    assert(Size == 32 && "Unsupported size");
-    return RTLIB::SDIV_I32;
+    assert((Size == 32 || Size == 64) && "Unsupported size");
+    return Size == 64 ? RTLIB::SDIV_I64 : RTLIB::SDIV_I32;
   case TargetOpcode::G_UDIV:
-    assert(Size == 32 && "Unsupported size");
-    return RTLIB::UDIV_I32;
+    assert((Size == 32 || Size == 64) && "Unsupported size");
+    return Size == 64 ? RTLIB::UDIV_I64 : RTLIB::UDIV_I32;
   case TargetOpcode::G_SREM:
-    assert(Size == 32 && "Unsupported size");
-    return RTLIB::SREM_I32;
+    assert((Size == 32 || Size == 64) && "Unsupported size");
+    return Size == 64 ? RTLIB::SREM_I64 : RTLIB::SREM_I32;
   case TargetOpcode::G_UREM:
-    assert(Size == 32 && "Unsupported size");
-    return RTLIB::UREM_I32;
+    assert((Size == 32 || Size == 64) && "Unsupported size");
+    return Size == 64 ? RTLIB::UREM_I64 : RTLIB::UREM_I32;
   case TargetOpcode::G_CTLZ_ZERO_UNDEF:
     assert(Size == 32 && "Unsupported size");
     return RTLIB::CTLZ_I32;
@@ -200,7 +200,7 @@
   case TargetOpcode::G_SREM:
   case TargetOpcode::G_UREM:
   case TargetOpcode::G_CTLZ_ZERO_UNDEF: {
-    Type *HLTy = Type::getInt32Ty(Ctx);
+    Type *HLTy = IntegerType::get(Ctx, Size);
     auto Status = simpleLibcall(MI, MIRBuilder, Size, HLTy);
     if (Status != Legalized)
       return Status;