#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/Value.h"
#include "llvm/IR/NoFolder.h"
#include "llvm/Support/Alignment.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/IPO/ArgumentPromotion.h"
#include "llvm/Transforms/Utils/Local.h"
continue;
if (Value *Align = getAllocAlignment(AI.CB, TLI)) {
- if (!getAPInt(A, *this, *Align)) {
+ Optional<APInt> APAlign = getAPInt(A, *this, *Align);
+ if (!APAlign) {
// Can't generate an alloca which respects the required alignment
// on the allocation.
LLVM_DEBUG(dbgs() << "[H2S] Unknown allocation alignment: " << *AI.CB
AI.Status = AllocationInfo::INVALID;
Changed = ChangeStatus::CHANGED;
continue;
+ } else {
+ if (APAlign->ugt(llvm::Value::MaximumAlignment) || !APAlign->isPowerOf2()) {
+ LLVM_DEBUG(dbgs() << "[H2S] Invalid allocation alignment: " << APAlign << "\n");
+ AI.Status = AllocationInfo::INVALID;
+ Changed = ChangeStatus::CHANGED;
+ continue;
+ }
}
}
ret void
}
+; leave alone a constant-but-invalid alignment
+define void @test3d(i8* %p) {
+; CHECK-LABEL: define {{[^@]+}}@test3d
+; CHECK-SAME; (i8* nocapture [[P:%.*]]) {
+; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @aligned_alloc(i64 allocalign noundef 33, i64 noundef 128)
+; CHECK: tail call void @free(i8* noalias nocapture [[TMP1]])
+; CHECK-NEXT: ret void
+;
+ %1 = tail call noalias i8* @aligned_alloc(i64 allocalign 33, i64 128)
+ tail call void @nofree_arg_only(i8* %1, i8* %p)
+ tail call void @free(i8* %1)
+ ret void
+}
+
declare noalias i8* @calloc(i64, i64)
define void @test0() {