ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges,
TypeMapper, Materializer));
+ if (OldFunc->hasPrefixData()) {
+ NewFunc->setPrefixData(
+ MapValue(OldFunc->getPrefixData(), VMap,
+ ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges,
+ TypeMapper, Materializer));
+ }
+
SmallVector<AttributeSet, 4> NewArgAttrs(NewFunc->arg_size());
AttributeList OldAttrs = OldFunc->getAttributes();
--- /dev/null
+; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=function-data --test FileCheck --test-arg --check-prefix=CHECK --test-arg %s --test-arg --input-file %s -o %t
+; RUN: FileCheck -check-prefixes=CHECK,RESULT %s < %t
+
+@gv = linkonce_odr global i32 1
+
+; CHECK: define void @drop_prefix_i32_const()
+define void @drop_prefix_i32_const() prefix i32 1 {
+ ret void
+}
+
+; CHECK: define void @keep_prefix_i32_const() prefix i32 1 {
+define void @keep_prefix_i32_const() prefix i32 1 {
+ ret void
+}
+
+; CHECK: define void @drop_prefix_ptr_global()
+define void @drop_prefix_ptr_global() prefix ptr @gv {
+ ret void
+}
+
+; CHECK: define void @keep_prefix_ptr_global() prefix ptr @gv {
+define void @keep_prefix_ptr_global() prefix ptr @gv {
+ ret void
+}
+
+; Make sure there's no invalid reduction if the prefix data is really
+; accessed
+; CHECK: define i32 @drop_uses_prefix_i32_const()
+define i32 @drop_uses_prefix_i32_const() prefix i32 1 {
+ %gep = getelementptr inbounds i32, ptr @drop_uses_prefix_i32_const, i32 -1
+ %load = load i32, ptr %gep
+ ret i32 %load
+}
+
+; CHECK: define ptr @drop_uses_prefix_gv(
+define ptr @drop_uses_prefix_gv() prefix ptr @gv {
+ %gep = getelementptr inbounds i32, ptr @drop_uses_prefix_gv, i32 -1
+ %load = load ptr, ptr %gep
+ ret ptr %load
+}
+
+
+; RESULT: declare void @declaration_prefix_i32_const(){{$}}
+declare void @declaration_prefix_i32_const() prefix i32 2
+
+; RESULT: void @declaration_prefix_ptr_gv(){{$}}
+declare void @declaration_prefix_ptr_gv() prefix ptr @gv
static void reduceFunctionData(Oracle &O, Module &M) {
for (Function &F : M) {
- if (F.isDeclaration())
- continue;
-
if (F.hasPersonalityFn()) {
if (none_of(F,
[](const BasicBlock &BB) {
}
}
- // TODO: Handle prefix data and prologue data
+ if (F.hasPrefixData() && !O.shouldKeep())
+ F.setPrefixData(nullptr);
+
+ // TODO: Handle prologue data
}
}