LLVM check has meta llvm.loop.unroll.enable and
llvm.loop.unroll.disable or not.
If llvm.loop.unroll.disable and llvm.loop.unroll.enable are both set,
llvm.loop.unroll.disable will override llvm.loop.unroll.enable.
---
backend/src/llvm/llvm_unroll.cpp | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/backend/src/llvm/llvm_unroll.cpp b/backend/src/llvm/llvm_unroll.cpp
index 8a492d6..6a7b164 100644
--- a/backend/src/llvm/llvm_unroll.cpp
+++ b/backend/src/llvm/llvm_unroll.cpp
@@ -108,8 +108,10 @@ namespace gbe {
LLVMContext &Context = L->getHeader()->getContext();
#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6
SmallVector<Metadata *, 2> forceUnroll;
- forceUnroll.push_back(MDString::get(Context,
"llvm.loop.unroll.enable"));
-
forceUnroll.push_back(ConstantAsMetadata::get(ConstantInt::get(Type::getInt1Ty(Context),
enable)));
+ if (enable)
+ forceUnroll.push_back(MDString::get(Context,
"llvm.loop.unroll.enable"));
+ else
+ forceUnroll.push_back(MDString::get(Context,
"llvm.loop.unroll.disable"));
MDNode *forceUnrollNode = MDNode::get(Context, forceUnroll);
SmallVector<Metadata *, 4> Vals;
Vals.push_back(NULL);
--
2.7.4
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