From 037c867b54746b2dd93a0f26aa9007488be26157 Mon Sep 17 00:00:00 2001 From: Anton Korobeynikov Date: Sun, 28 Jan 2007 13:31:35 +0000 Subject: Propagate changes from my local tree. This patch includes: 1. New parameter attribute called 'inreg'. It has meaning "place this parameter in registers, if possible". This is some generalization of gcc's regparm(n) attribute. It's currently used only in X86-32 backend. 2. Completely rewritten CC handling/lowering code inside X86 backend. Merged stdcall + c CCs and fastcall + fast CC. 3. Dropped CSRET CC. We cannot add struct return variant for each target-specific CC (e.g. stdcall + csretcc and so on). 4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in on first attribute has meaning 'This is hidden pointer to structure return. Handle it gently'. 5. Fixed small bug in llvm-extract + add new feature to FunctionExtraction pass, which relinks all internal-linkaged callees from deleted function to external linkage. This will allow further linking everything together. NOTEs: 1. Documentation will be updated soon. 2. llvm-upgrade should be improved to translate csret => sret. Before this, there will be some unexpected test fails. llvm-svn: 33597 --- llvm/tools/llvm-extract/llvm-extract.cpp | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'llvm/tools/llvm-extract') diff --git a/llvm/tools/llvm-extract/llvm-extract.cpp b/llvm/tools/llvm-extract/llvm-extract.cpp index 882455fc271..766860fd4f4 100644 --- a/llvm/tools/llvm-extract/llvm-extract.cpp +++ b/llvm/tools/llvm-extract/llvm-extract.cpp @@ -42,6 +42,10 @@ Force("f", cl::desc("Overwrite output files")); static cl::opt DeleteFn("delete", cl::desc("Delete specified function from Module")); +static cl::opt +Relink("relink", + cl::desc("Turn external linkage for callees of function to delete")); + // ExtractFunc - The function to extract from the module... defaults to main. static cl::opt ExtractFunc("func", cl::desc("Specify function to extract"), cl::init("main"), @@ -72,8 +76,9 @@ int main(int argc, char **argv) { PassManager Passes; Passes.add(new TargetData(M.get())); // Use correct TargetData // Either isolate the function or delete it from the Module - Passes.add(createFunctionExtractionPass(F, DeleteFn)); - Passes.add(createGlobalDCEPass()); // Delete unreachable globals + Passes.add(createFunctionExtractionPass(F, DeleteFn, Relink)); + if (!DeleteFn) + Passes.add(createGlobalDCEPass()); // Delete unreachable globals Passes.add(createFunctionResolvingPass()); // Delete prototypes Passes.add(createDeadTypeEliminationPass()); // Remove dead types... -- cgit v1.2.3