Recommit "[GlobalISel] Add IRTranslator support for G_FFLOOR"

After the changes introduced in r353586, this instruction doesn't cause any
issues for any backend.

Original review: https://reviews.llvm.org/D57485

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353720 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/GlobalISel/IRTranslator.cpp b/lib/CodeGen/GlobalISel/IRTranslator.cpp
index 19bff7fc56febfbab6ab6a8abceeab7c4c6bbd56..9b94a9923f026bdff2f0bf977a578fffaf021707 100644 (file)
--- a/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -808,6 +808,8 @@ IRTranslator::getSimpleUnaryIntrinsicOpcode(Intrinsic::ID ID) {
       return TargetOpcode::G_FABS;
     case Intrinsic::canonicalize:
       return TargetOpcode::G_FCANONICALIZE;
+    case Intrinsic::floor:
+      return TargetOpcode::G_FFLOOR;
     case Intrinsic::log:
       return TargetOpcode::G_FLOG;
     case Intrinsic::log2:

diff --git a/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll b/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
index f61602b59bbb330205b89af98ce42c733bb78593..81505b8839096a6b9765704a2fa1f0a4fa8c1e02 100644 (file)
--- a/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
+++ b/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
@@ -2334,6 +2334,14 @@ define float @test_sqrt_f32(float %x) {
   ret float %y
 }
 
+declare float @llvm.floor.f32(float)
+define float @test_floor_f32(float %x) {
+  ; CHECK-LABEL: name:            test_floor_f32
+  ; CHECK: %{{[0-9]+}}:_(s32) = G_FFLOOR %{{[0-9]+}}
+  %y = call float @llvm.floor.f32(float %x)
+  ret float %y
+}
+
 ; CHECK-LABEL: name: test_llvm.aarch64.neon.ld3.v4i32.p0i32
 ; CHECK: %1:_(s384) = G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.aarch64.neon.ld3), %0(p0) :: (load 48 from %ir.ptr, align 64)
 define void @test_llvm.aarch64.neon.ld3.v4i32.p0i32(i32* %ptr) {