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(parent: 0fd77a5) | patch
For now, don't split live intervals around x87 stack register barriers. FpGET_ST0_80...
authorEvan Cheng <evan.cheng@apple.com>
Mon, 27 Oct 2008 07:14:50 +0000 (07:14 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Mon, 27 Oct 2008 07:14:50 +0000 (07:14 +0000)
commit23066288fdf4867f53f208f9aaf2952b1c049394
tree2bc4df159784221290c1aa16e2256ac55c523299tree | snapshot
parent0fd77a579bbed0fa06720474f1c5b2e3cd75004fcommit | diff
For now, don't split live intervals around x87 stack register barriers. FpGET_ST0_80 must be right after a call instruction (and ADJCALLSTACKUP) so we need to find a way to prevent reload of x87 registers between them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58230 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/Target/TargetInstrInfo.h diff | blob | history
lib/CodeGen/PreAllocSplitting.cpp diff | blob | history
lib/Target/X86/X86InstrInfo.cpp diff | blob | history
lib/Target/X86/X86InstrInfo.h diff | blob | history
lib/Target/X86/X86RegisterInfo.h diff | blob | history
test/CodeGen/X86/pre-split7.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors