commit 84bedac7e93ba353798cdce2a8cce91341707d8e
author Jessica Paquette <jpaquette@apple.com> Wed Jan 30 23:46:15 2019 +0000
committer Jessica Paquette <jpaquette@apple.com> Wed Jan 30 23:46:15 2019 +0000
tree dfe98a9fdce9b587663e76139b90de07b8ee2b96
parent 13311e52747d0a4c61e72a4c54d000cf2c26c096

[GlobalISel][AArch64] Select G_FEXP

This teaches the legalizer to handle G_FEXP in AArch64. As a result, it also
allows us to select G_FEXP.

It...

- Updates the legalizer-info tests
- Adds a test for legalizing exp
- Updates the existing fp tests to show that we can now select G_FEXP

https://reviews.llvm.org/D57483

llvm-svn: 352692

llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp

diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index ab1b633..91c436b 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -115,6 +115,9 @@
   case TargetOpcode::G_FDIV:
     assert((Size == 32 || Size == 64) && "Unsupported size");
     return Size == 64 ? RTLIB::DIV_F64 : RTLIB::DIV_F32;
+  case TargetOpcode::G_FEXP:
+    assert((Size == 32 || Size == 64) && "Unsupported size");
+    return Size == 64 ? RTLIB::EXP_F64 : RTLIB::EXP_F32;
   case TargetOpcode::G_FREM:
     return Size == 64 ? RTLIB::REM_F64 : RTLIB::REM_F32;
   case TargetOpcode::G_FPOW:
@@ -238,7 +241,8 @@
   case TargetOpcode::G_FSIN:
   case TargetOpcode::G_FLOG10:
   case TargetOpcode::G_FLOG:
-  case TargetOpcode::G_FLOG2: {
+  case TargetOpcode::G_FLOG2:
+  case TargetOpcode::G_FEXP: {
     if (Size > 64) {
       LLVM_DEBUG(dbgs() << "Size " << Size << " too large to legalize.\n");
       return UnableToLegalize;
@@ -1206,6 +1210,7 @@
   case TargetOpcode::G_FLOG:
   case TargetOpcode::G_FLOG2:
   case TargetOpcode::G_FSQRT:
+  case TargetOpcode::G_FEXP:
     assert(TypeIdx == 0);
     Observer.changingInstr(MI);