[llvm] [C API] Add function to create constantRange attributes to C API (PR #90505)
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Mon Apr 29 11:20:15 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-ir
Author: Andreas Jonson (andjo403)
<details>
<summary>Changes</summary>
@<!-- -->nikic was it something like this that you was thinking of?
Do not know if it makes sense to have a test as there is no way to get the range again so not possible to test it in eg. echo.ll
---
Full diff: https://github.com/llvm/llvm-project/pull/90505.diff
3 Files Affected:
- (modified) llvm/docs/ReleaseNotes.rst (+2)
- (modified) llvm/include/llvm-c/Core.h (+8)
- (modified) llvm/lib/IR/Core.cpp (+14)
``````````diff
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index 46d79d6c5822b1..0c5697e6ec949d 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -161,6 +161,8 @@ Changes to the C API
* Added ``LLVMAtomicRMWBinOpUIncWrap`` and ``LLVMAtomicRMWBinOpUDecWrap`` to
``LLVMAtomicRMWBinOp`` enum for AtomicRMW instructions.
+* Added ``LLVMCreateConstantRangeAttribute`` function for creating ConstantRange Attributes.
+
Changes to the CodeGen infrastructure
-------------------------------------
diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
index 0b03f3b36fcdd3..3670fa88a734fc 100644
--- a/llvm/include/llvm-c/Core.h
+++ b/llvm/include/llvm-c/Core.h
@@ -673,6 +673,14 @@ LLVMAttributeRef LLVMCreateTypeAttribute(LLVMContextRef C, unsigned KindID,
*/
LLVMTypeRef LLVMGetTypeAttributeValue(LLVMAttributeRef A);
+/**
+ * Create a constantRange attribute
+ */
+LLVMAttributeRef LLVMCreateConstantRangeAttribute(
+ LLVMContextRef C, unsigned KindID, LLVMTypeRef IntTy,
+ unsigned LowerNumWords, const uint64_t LowerWords[], unsigned UpperNumWords,
+ const uint64_t UpperWords[]);
+
/**
* Create a string attribute.
*/
diff --git a/llvm/lib/IR/Core.cpp b/llvm/lib/IR/Core.cpp
index 6aff94f39d9c0c..b68b304fffb8d4 100644
--- a/llvm/lib/IR/Core.cpp
+++ b/llvm/lib/IR/Core.cpp
@@ -14,6 +14,7 @@
#include "llvm-c/Core.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
+#include "llvm/IR/ConstantRange.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DerivedTypes.h"
@@ -178,6 +179,19 @@ LLVMTypeRef LLVMGetTypeAttributeValue(LLVMAttributeRef A) {
return wrap(Attr.getValueAsType());
}
+LLVMAttributeRef LLVMCreateConstantRangeAttribute(
+ LLVMContextRef C, unsigned KindID, LLVMTypeRef IntTy,
+ unsigned LowerNumWords, const uint64_t LowerWords[], unsigned UpperNumWords,
+ const uint64_t UpperWords[]) {
+ unsigned BitWidth = unwrap<IntegerType>(IntTy)->getBitWidth();
+ auto &Ctx = *unwrap(C);
+ auto AttrKind = (Attribute::AttrKind)KindID;
+ return wrap(Attribute::get(
+ Ctx, AttrKind,
+ ConstantRange(APInt(BitWidth, ArrayRef(LowerWords, LowerNumWords)),
+ APInt(BitWidth, ArrayRef(UpperWords, UpperNumWords)))));
+}
+
LLVMAttributeRef LLVMCreateStringAttribute(LLVMContextRef C,
const char *K, unsigned KLength,
const char *V, unsigned VLength) {
``````````
</details>
https://github.com/llvm/llvm-project/pull/90505
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