[GlobalISel] Add IRTranslator support for G_FRINT

Add it as a simple intrinsic, update arm64-irtranslator.ll.

Differential Revision: https://reviews.llvm.org/D60893

llvm-svn: 358787

2 files changed, 10 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index 308105fee89..01823527f1f 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -790,6 +790,8 @@ unsigned IRTranslator::getSimpleIntrinsicOpcode(Intrinsic::ID ID) {
       return TargetOpcode::G_FLOG10;
     case Intrinsic::pow:
       return TargetOpcode::G_FPOW;
+    case Intrinsic::rint:
+      return TargetOpcode::G_FRINT;
     case Intrinsic::round:
       return TargetOpcode::G_INTRINSIC_ROUND;
     case Intrinsic::sin:
diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll b/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
index a02ed12f6fd..02437839967 100644
--- a/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
+++ b/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
@@ -2362,3 +2362,11 @@ define void @test_stacksaverestore() {
   call void @llvm.stackrestore(i8* %sp)
   ret void
 }
+
+declare float @llvm.rint.f32(float)
+define float @test_rint_f32(float %x) {
+  ; CHECK-LABEL: name:            test_rint_f32
+  ; CHECK: %{{[0-9]+}}:_(s32) = G_FRINT %{{[0-9]+}}
+  %y = call float @llvm.rint.f32(float %x)
+  ret float %y
+}