[clang] 74b1c4c - [clang] added alloc allign attr to memalign
Dávid Bolvanský via cfe-commits
cfe-commits at lists.llvm.org
Sat Feb 5 02:47:30 PST 2022
Author: Dávid Bolvanský
Date: 2022-02-05T11:46:56+01:00
New Revision: 74b1c4c36740fe94953ef648e40df7dd9e9a9c7d
URL: https://github.com/llvm/llvm-project/commit/74b1c4c36740fe94953ef648e40df7dd9e9a9c7d
DIFF: https://github.com/llvm/llvm-project/commit/74b1c4c36740fe94953ef648e40df7dd9e9a9c7d.diff
LOG: [clang] added alloc allign attr to memalign
Added:
Modified:
clang/lib/Sema/SemaDecl.cpp
clang/test/CodeGen/alloc-fns-alignment.c
Removed:
################################################################################
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index a86947aa5fbfc..f2871d82b0409 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -15315,6 +15315,7 @@ void Sema::AddKnownFunctionAttributes(FunctionDecl *FD) {
// Add known guaranteed alignment for allocation functions.
switch (BuiltinID) {
+ case Builtin::BImemalign:
case Builtin::BIaligned_alloc:
if (!FD->hasAttr<AllocAlignAttr>())
FD->addAttr(AllocAlignAttr::CreateImplicit(Context, ParamIdx(1, FD),
@@ -15322,7 +15323,6 @@ void Sema::AddKnownFunctionAttributes(FunctionDecl *FD) {
LLVM_FALLTHROUGH;
case Builtin::BIcalloc:
case Builtin::BImalloc:
- case Builtin::BImemalign:
case Builtin::BIrealloc:
case Builtin::BIstrdup:
case Builtin::BIstrndup: {
diff --git a/clang/test/CodeGen/alloc-fns-alignment.c b/clang/test/CodeGen/alloc-fns-alignment.c
index 8ab0610accf03..29d6e9e4fb380 100644
--- a/clang/test/CodeGen/alloc-fns-alignment.c
+++ b/clang/test/CodeGen/alloc-fns-alignment.c
@@ -6,6 +6,7 @@
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fno-builtin-calloc -emit-llvm < %s | FileCheck %s --check-prefix=NOBUILTIN-CALLOC
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fno-builtin-realloc -emit-llvm < %s | FileCheck %s --check-prefix=NOBUILTIN-REALLOC
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fno-builtin-aligned_alloc -emit-llvm < %s | FileCheck %s --check-prefix=NOBUILTIN-ALIGNED_ALLOC
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fno-builtin-memalign -emit-llvm < %s | FileCheck %s --check-prefix=NOBUILTIN-MEMALIGN
typedef __SIZE_TYPE__ size_t;
@@ -13,6 +14,7 @@ void *malloc(size_t);
void *calloc(size_t, size_t);
void *realloc(void *, size_t);
void *aligned_alloc(size_t, size_t);
+void *memalign(size_t, size_t);
void *malloc_test(size_t n) {
return malloc(n);
@@ -30,6 +32,10 @@ void *aligned_alloc_variable_test(size_t n, size_t a) {
return aligned_alloc(a, n);
}
+void *memalign_variable_test(size_t n, size_t a) {
+ return memalign(a, n);
+}
+
void *aligned_alloc_constant_test(size_t n) {
return aligned_alloc(8, n);
}
@@ -38,6 +44,10 @@ void *aligned_alloc_large_constant_test(size_t n) {
return aligned_alloc(4096, n);
}
+void *memalign_large_constant_test(size_t n) {
+ return memalign(4096, n);
+}
+
// CHECK-LABEL: @malloc_test
// ALIGN16: align 16 i8* @malloc
@@ -51,12 +61,19 @@ void *aligned_alloc_large_constant_test(size_t n) {
// ALIGN16: %[[ALLOCATED:.*]] = call align 16 i8* @aligned_alloc({{i32|i64}} noundef %[[ALIGN:.*]], {{i32|i64}} noundef %[[NBYTES:.*]])
// ALIGN16-NEXT: call void @llvm.assume(i1 true) [ "align"(i8* %[[ALLOCATED]], {{i32|i64}} %[[ALIGN]]) ]
+// CHECK-LABEL: @memalign_variable_test
+// ALIGN16: %[[ALLOCATED:.*]] = call align 16 i8* @memalign({{i32|i64}} noundef %[[ALIGN:.*]], {{i32|i64}} noundef %[[NBYTES:.*]])
+// ALIGN16-NEXT: call void @llvm.assume(i1 true) [ "align"(i8* %[[ALLOCATED]], {{i32|i64}} %[[ALIGN]]) ]
+
// CHECK-LABEL: @aligned_alloc_constant_test
// ALIGN16: align 16 i8* @aligned_alloc
// CHECK-LABEL: @aligned_alloc_large_constant_test
// ALIGN16: align 4096 i8* @aligned_alloc
+// CHECK-LABEL: @memalign_large_constant_test
+// ALIGN16: align 4096 i8* @memalign
+
// CHECK-LABEL: @malloc_test
// ALIGN8: align 8 i8* @malloc
@@ -69,13 +86,20 @@ void *aligned_alloc_large_constant_test(size_t n) {
// CHECK-LABEL: @aligned_alloc_variable_test
// ALIGN8: align 8 i8* @aligned_alloc
+// CHECK-LABEL: @memalign_variable_test
+// ALIGN8: align 8 i8* @memalign
+
// CHECK-LABEL: @aligned_alloc_constant_test
// ALIGN8: align 8 i8* @aligned_alloc
// CHECK-LABEL: @aligned_alloc_large_constant_test
// ALIGN8: align 4096 i8* @aligned_alloc
+// CHECK-LABEL: @memalign_large_constant_test
+// ALIGN8: align 4096 i8* @memalign
+
// NOBUILTIN-MALLOC: declare i8* @malloc
// NOBUILTIN-CALLOC: declare i8* @calloc
// NOBUILTIN-REALLOC: declare i8* @realloc
// NOBUILTIN-ALIGNED_ALLOC: declare i8* @aligned_alloc
+// NOBUILTIN-MEMALIGN: declare i8* @memalign
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