From 63e3dec9adb4c134d0cf6e08241970adc75a7ad5 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Thu, 4 Aug 2011 21:06:09 +0000 Subject: Count the total amount of stack space used in compiled functions. Patch by Ivan Krasin! llvm-svn: 136921 --- llvm/lib/CodeGen/PrologEpilogInserter.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'llvm/lib/CodeGen') diff --git a/llvm/lib/CodeGen/PrologEpilogInserter.cpp b/llvm/lib/CodeGen/PrologEpilogInserter.cpp index a901c5fefa3..7e5d804f913 100644 --- a/llvm/lib/CodeGen/PrologEpilogInserter.cpp +++ b/llvm/lib/CodeGen/PrologEpilogInserter.cpp @@ -54,6 +54,7 @@ INITIALIZE_PASS_END(PEI, "prologepilog", STATISTIC(NumVirtualFrameRegs, "Number of virtual frame regs encountered"); STATISTIC(NumScavengedRegs, "Number of frame index regs scavenged"); +STATISTIC(NumBytesStackSpace, "Number of bytes used for stack in all functions"); /// createPrologEpilogCodeInserter - This function returns a pass that inserts /// prolog and epilog code, and eliminates abstract frame references. @@ -677,7 +678,9 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) { } // Update frame info to pretend that this is part of the stack... - MFI->setStackSize(Offset - LocalAreaOffset); + int64_t StackSize = Offset - LocalAreaOffset; + MFI->setStackSize(StackSize); + NumBytesStackSpace += StackSize; } /// insertPrologEpilogCode - Scan the function for modified callee saved -- cgit v1.2.3