From 2b1682bcd42fc2a2daf772b063dc18fec0e2888a Mon Sep 17 00:00:00 2001 From: Venkatraman Govindaraju Date: Sat, 1 Mar 2014 05:45:09 +0000 Subject: [Sparc] Implement writeNopData. Emit actual NOP instruction instead of just filling with zeroes. llvm-svn: 202572 --- llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'llvm/lib/Target/Sparc') diff --git a/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp b/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp index 812f4b73bd1..f6c58165497 100644 --- a/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp +++ b/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp @@ -200,9 +200,14 @@ namespace { } bool writeNopData(uint64_t Count, MCObjectWriter *OW) const { - // FIXME: Zero fill for now. - for (uint64_t i = 0; i != Count; ++i) - OW->Write8(0); + // Cannot emit NOP with size not multiple of 32 bits. + if (Count % 4 != 0) + return false; + + uint64_t NumNops = Count / 4; + for (uint64_t i = 0; i != NumNops; ++i) + OW->Write32(0x01000000); + return true; } -- cgit v1.2.3