[clang] [CIR] Support __builtin_elementwise_ceil (PR #204974)

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llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang

@llvm/pr-subscribers-clangir

Author: Letu Ren (FantasqueX)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/204974.diff


2 Files Affected:

- (modified) clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp (+3-3) 
- (modified) clang/test/CIR/CodeGenBuiltins/builtins-elementwise.c (+22) 


``````````diff
diff --git a/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp b/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
index a483eb635f0e2..cebc4cc733ece 100644
--- a/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
@@ -537,9 +537,8 @@ static RValue tryEmitFPMathIntrinsic(CIRGenFunction &cgf, const CallExpr *e,
   case Builtin::BI__builtin_ceilf16:
   case Builtin::BI__builtin_ceill:
   case Builtin::BI__builtin_ceilf128:
-    return emitUnaryMaybeConstrainedFPBuiltin<cir::CeilOp>(cgf, *e);
   case Builtin::BI__builtin_elementwise_ceil:
-    return RValue::getIgnored();
+    return emitUnaryMaybeConstrainedFPBuiltin<cir::CeilOp>(cgf, *e);
   case Builtin::BIcopysign:
   case Builtin::BIcopysignf:
   case Builtin::BIcopysignl:
@@ -1645,6 +1644,8 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
     return emitUnaryMaybeConstrainedFPBuiltin<cir::Log10Op>(*this, *e);
   case Builtin::BI__builtin_elementwise_cos:
     return emitUnaryMaybeConstrainedFPBuiltin<cir::CosOp>(*this, *e);
+  case Builtin::BI__builtin_elementwise_ceil:
+    return emitUnaryMaybeConstrainedFPBuiltin<cir::CeilOp>(*this, *e);
   case Builtin::BI__builtin_elementwise_floor:
     return emitUnaryMaybeConstrainedFPBuiltin<cir::FloorOp>(*this, *e);
   case Builtin::BI__builtin_elementwise_round:
@@ -1664,7 +1665,6 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
   case Builtin::BI__builtin_elementwise_fmod:
     return RValue::get(
         emitBinaryMaybeConstrainedFPBuiltin<cir::FModOp>(*this, *e));
-  case Builtin::BI__builtin_elementwise_ceil:
   case Builtin::BI__builtin_elementwise_exp10:
   case Builtin::BI__builtin_elementwise_ldexp:
   case Builtin::BI__builtin_elementwise_pow:
diff --git a/clang/test/CIR/CodeGenBuiltins/builtins-elementwise.c b/clang/test/CIR/CodeGenBuiltins/builtins-elementwise.c
index c04739d737632..8d14a813d61f5 100644
--- a/clang/test/CIR/CodeGenBuiltins/builtins-elementwise.c
+++ b/clang/test/CIR/CodeGenBuiltins/builtins-elementwise.c
@@ -261,6 +261,28 @@ void test_builtin_elementwise_cos(float f, double d, vfloat4 vf4,
   vd4 = __builtin_elementwise_cos(vd4);
 }
 
+void test_builtin_elementwise_ceil(float f, double d, vfloat4 vf4,
+                   vdouble4 vd4) {
+  // CIR-LABEL: test_builtin_elementwise_ceil
+  // LLVM-LABEL: test_builtin_elementwise_ceil
+
+  // CIR: cir.ceil %{{.*}} : !cir.float
+  // LLVM: call float @llvm.ceil.f32(float %{{.*}})
+  f = __builtin_elementwise_ceil(f);
+
+  // CIR: cir.ceil %{{.*}} : !cir.double
+  // LLVM: call double @llvm.ceil.f64(double %{{.*}})
+  d = __builtin_elementwise_ceil(d);
+
+  // CIR: cir.ceil %{{.*}} : !cir.vector<4 x !cir.float>
+  // LLVM: call <4 x float> @llvm.ceil.v4f32(<4 x float> %{{.*}})
+  vf4 = __builtin_elementwise_ceil(vf4);
+
+  // CIR: cir.ceil %{{.*}} : !cir.vector<4 x !cir.double>
+  // LLVM: call <4 x double> @llvm.ceil.v4f64(<4 x double> %{{.*}})
+  vd4 = __builtin_elementwise_ceil(vd4);
+}
+
 void test_builtin_elementwise_floor(float f, double d, vfloat4 vf4,
                    vdouble4 vd4) {
   // CIR-LABEL: test_builtin_elementwise_floor

``````````

</details>


https://github.com/llvm/llvm-project/pull/204974