[PATCH] D144935: Add missing roundtointegral builtin functions for some FP instructions to be generated from C-written codes

[Jun Sha via Phabricator via cfe-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGa7d6593a0a17: Add missing roundtointegral builtin functions for some FP instructions to be… (authored by joshua-arch1).
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

Changed prior to commit:
  https://reviews.llvm.org/D144935?vs=500990&id=502927#toc

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144935/new/

https://reviews.llvm.org/D144935

Files:
  clang/include/clang/Basic/Builtins.def
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/builtins.c


Index: clang/test/CodeGen/builtins.c
===================================================================
--- clang/test/CodeGen/builtins.c
+++ clang/test/CodeGen/builtins.c
@@ -411,6 +411,15 @@
   resld = __builtin_roundl(LD);
   // CHECK: call x86_fp80 @llvm.round.f80
 
+  resf = __builtin_roundevenf(F);
+  // CHECK: call float @llvm.roundeven.f32
+
+  resd = __builtin_roundeven(D);
+  // CHECK: call double @llvm.roundeven.f64
+
+  resld = __builtin_roundevenl(LD);
+  // CHECK: call x86_fp80 @llvm.roundeven.f80
+  
   resli = __builtin_lroundf (F);
   // CHECK: call i64 @llvm.lround.i64.f32
 
Index: clang/lib/CodeGen/CGBuiltin.cpp
===================================================================
--- clang/lib/CodeGen/CGBuiltin.cpp
+++ clang/lib/CodeGen/CGBuiltin.cpp
@@ -2444,6 +2444,18 @@
                                    Intrinsic::round,
                                    Intrinsic::experimental_constrained_round));
 
+    case Builtin::BIroundeven:
+    case Builtin::BIroundevenf:
+    case Builtin::BIroundevenl:
+    case Builtin::BI__builtin_roundeven:
+    case Builtin::BI__builtin_roundevenf:
+    case Builtin::BI__builtin_roundevenf16:
+    case Builtin::BI__builtin_roundevenl:
+    case Builtin::BI__builtin_roundevenf128:
+      return RValue::get(emitUnaryMaybeConstrainedFPBuiltin(*this, E,
+                                   Intrinsic::roundeven,
+                                   Intrinsic::experimental_constrained_roundeven));
+                                   
     case Builtin::BIsin:
     case Builtin::BIsinf:
     case Builtin::BIsinl:
Index: clang/include/clang/Basic/Builtins.def
===================================================================
--- clang/include/clang/Basic/Builtins.def
+++ clang/include/clang/Basic/Builtins.def
@@ -350,6 +350,11 @@
 BUILTIN(__builtin_roundf16, "hh"  , "Fnc")
 BUILTIN(__builtin_roundl, "LdLd"  , "Fnc")
 BUILTIN(__builtin_roundf128, "LLdLLd"  , "Fnc")
+BUILTIN(__builtin_roundeven, "dd"  , "Fnc")
+BUILTIN(__builtin_roundevenf, "ff"  , "Fnc")
+BUILTIN(__builtin_roundevenf16, "hh"  , "Fnc")
+BUILTIN(__builtin_roundevenl, "LdLd"  , "Fnc")
+BUILTIN(__builtin_roundevenf128, "LLdLLd"  , "Fnc")
 BUILTIN(__builtin_scalbln , "ddLi", "Fne")
 BUILTIN(__builtin_scalblnf, "ffLi", "Fne")
 BUILTIN(__builtin_scalblnl, "LdLdLi", "Fne")
@@ -1420,6 +1425,10 @@
 LIBBUILTIN(roundf, "ff", "fnc", MATH_H, ALL_LANGUAGES)
 LIBBUILTIN(roundl, "LdLd", "fnc", MATH_H, ALL_LANGUAGES)
 
+LIBBUILTIN(roundeven, "dd", "fnc", MATH_H, ALL_LANGUAGES)
+LIBBUILTIN(roundevenf, "ff", "fnc", MATH_H, ALL_LANGUAGES)
+LIBBUILTIN(roundevenl, "LdLd", "fnc", MATH_H, ALL_LANGUAGES)
+
 LIBBUILTIN(scalbln, "ddLi", "fne", MATH_H, ALL_LANGUAGES)
 LIBBUILTIN(scalblnf, "ffLi", "fne", MATH_H, ALL_LANGUAGES)
 LIBBUILTIN(scalblnl, "LdLdLi", "fne", MATH_H, ALL_LANGUAGES)


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