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authorChad Rosier <mcrosier@codeaurora.org>2015-12-29 18:18:07 +0000
committerChad Rosier <mcrosier@codeaurora.org>2015-12-29 18:18:07 +0000
commit6b4326367ad95c39d83236cd30fb3e734f865157 (patch)
tree373d184f3787b3e31a1d6f89bc5959ec79adc6fd /llvm/lib/CodeGen/MachineFunction.cpp
parente7d82283cd59e334aea02140dacd7c3d518b48bf (diff)
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Add command line options to force function/loop alignments.
These are being added for testing purposes. http://reviews.llvm.org/D15648 llvm-svn: 256571
Diffstat (limited to 'llvm/lib/CodeGen/MachineFunction.cpp')
-rw-r--r--llvm/lib/CodeGen/MachineFunction.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineFunction.cpp b/llvm/lib/CodeGen/MachineFunction.cpp
index 80d30a5..ca4bb1c 100644
--- a/llvm/lib/CodeGen/MachineFunction.cpp
+++ b/llvm/lib/CodeGen/MachineFunction.cpp
@@ -47,6 +47,11 @@ using namespace llvm;
#define DEBUG_TYPE "codegen"
+static cl::opt<unsigned>
+ AlignAllFunctions("align-all-functions",
+ cl::desc("Force the alignment of all functions."),
+ cl::init(0), cl::Hidden);
+
void MachineFunctionInitializer::anchor() {}
//===----------------------------------------------------------------------===//
@@ -87,6 +92,9 @@ MachineFunction::MachineFunction(const Function *F, const TargetMachine &TM,
Alignment = std::max(Alignment,
STI->getTargetLowering()->getPrefFunctionAlignment());
+ if (AlignAllFunctions)
+ Alignment = AlignAllFunctions;
+
FunctionNumber = FunctionNum;
JumpTableInfo = nullptr;