[clang] [Clang] Swap range metadata to attribute for intrinsics. (PR #94851)

[Andreas Jonson via cfe-commits]

https://github.com/andjo403 created 
https://github.com/llvm/llvm-project/pull/94851

Continues to swap out range metadata to range attribute for calls to be able to 
deprecate range metadata on calls in the future

>From 6b4556ea373d90a780c132ab2c51ae46d40a3f49 Mon Sep 17 00:00:00 2001
From: Andreas Jonson <andjo...@hotmail.com>
Date: Sun, 26 May 2024 10:02:25 +0200
Subject: [PATCH] [Clang] swap range metadata to attribute for Intrinsics.

---
 clang/lib/CodeGen/CGBuiltin.cpp             | 18 ++++++++----------
 clang/test/CodeGenOpenCL/builtins-amdgcn.cl |  7 +++----
 clang/test/CodeGenOpenCL/builtins-r600.cl   |  7 +++----
 3 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index c16b69ba87567..e053e1a46cbb1 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -734,17 +734,15 @@ static llvm::Value *EmitOverflowIntrinsic(CodeGenFunction 
&CGF,
   return CGF.Builder.CreateExtractValue(Tmp, 0);
 }
 
-static Value *emitRangedBuiltin(CodeGenFunction &CGF,
-                                unsigned IntrinsicID,
+static Value *emitRangedBuiltin(CodeGenFunction &CGF, unsigned IntrinsicID,
                                 int low, int high) {
-    llvm::MDBuilder MDHelper(CGF.getLLVMContext());
-    llvm::MDNode *RNode = MDHelper.createRange(APInt(32, low), APInt(32, 
high));
-    Function *F = CGF.CGM.getIntrinsic(IntrinsicID, {});
-    llvm::Instruction *Call = CGF.Builder.CreateCall(F);
-    Call->setMetadata(llvm::LLVMContext::MD_range, RNode);
-    Call->setMetadata(llvm::LLVMContext::MD_noundef,
-                      llvm::MDNode::get(CGF.getLLVMContext(), std::nullopt));
-    return Call;
+  Function *F = CGF.CGM.getIntrinsic(IntrinsicID, {});
+  llvm::CallInst *Call = CGF.Builder.CreateCall(F);
+  llvm::ConstantRange CR(APInt(32, low), APInt(32, high));
+  Call->addRangeRetAttr(CR);
+  Call->setMetadata(llvm::LLVMContext::MD_noundef,
+                    llvm::MDNode::get(CGF.getLLVMContext(), std::nullopt));
+  return Call;
 }
 
 namespace {
diff --git a/clang/test/CodeGenOpenCL/builtins-amdgcn.cl 
b/clang/test/CodeGenOpenCL/builtins-amdgcn.cl
index ffc190b76db98..121d1f15449e3 100644
--- a/clang/test/CodeGenOpenCL/builtins-amdgcn.cl
+++ b/clang/test/CodeGenOpenCL/builtins-amdgcn.cl
@@ -605,9 +605,9 @@ void test_s_getreg(volatile global uint *out)
 }
 
 // CHECK-LABEL: @test_get_local_id(
-// CHECK: tail call{{.*}} i32 @llvm.amdgcn.workitem.id.x(), !range 
[[$WI_RANGE:![0-9]*]], !noundef
-// CHECK: tail call{{.*}} i32 @llvm.amdgcn.workitem.id.y(), !range 
[[$WI_RANGE]], !noundef
-// CHECK: tail call{{.*}} i32 @llvm.amdgcn.workitem.id.z(), !range 
[[$WI_RANGE]], !noundef
+// CHECK: tail call range(i32 0, 1024){{.*}} i32 @llvm.amdgcn.workitem.id.x(), 
!noundef
+// CHECK: tail call range(i32 0, 1024){{.*}} i32 @llvm.amdgcn.workitem.id.y(), 
!noundef
+// CHECK: tail call range(i32 0, 1024{{.*}}) i32 @llvm.amdgcn.workitem.id.z(), 
!noundef
 void test_get_local_id(int d, global int *out)
 {
        switch (d) {
@@ -891,6 +891,5 @@ void test_set_fpenv(unsigned long env) {
   __builtin_amdgcn_set_fpenv(env);
 }
 
-// CHECK-DAG: [[$WI_RANGE]] = !{i32 0, i32 1024}
 // CHECK-DAG: [[$WS_RANGE]] = !{i16 1, i16 1025}
 // CHECK-DAG: attributes #[[$NOUNWIND_READONLY]] = { convergent mustprogress 
nocallback nofree nounwind willreturn memory(none) }
diff --git a/clang/test/CodeGenOpenCL/builtins-r600.cl 
b/clang/test/CodeGenOpenCL/builtins-r600.cl
index c6b40f079b3f2..e9d60be2ee444 100644
--- a/clang/test/CodeGenOpenCL/builtins-r600.cl
+++ b/clang/test/CodeGenOpenCL/builtins-r600.cl
@@ -39,9 +39,9 @@ void test_get_group_id(int d, global int *out)
 }
 
 // CHECK-LABEL: @test_get_local_id(
-// CHECK: tail call i32 @llvm.r600.read.tidig.x(), !range [[WI_RANGE:![0-9]*]]
-// CHECK: tail call i32 @llvm.r600.read.tidig.y(), !range [[WI_RANGE]]
-// CHECK: tail call i32 @llvm.r600.read.tidig.z(), !range [[WI_RANGE]]
+// CHECK: tail call range(i32 0, 1024) i32 @llvm.r600.read.tidig.x()
+// CHECK: tail call range(i32 0, 1024) i32 @llvm.r600.read.tidig.y()
+// CHECK: tail call range(i32 0, 1024) i32 @llvm.r600.read.tidig.z()
 void test_get_local_id(int d, global int *out)
 {
        switch (d) {
@@ -52,4 +52,3 @@ void test_get_local_id(int d, global int *out)
        }
 }
 
-// CHECK-DAG: [[WI_RANGE]] = !{i32 0, i32 1024}

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