6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-02 07:11:49 +00:00
Code Issues Projects Releases Wiki Activity

There's no need to consider PHI nodes in the same block as the instruction

Browse Source 
we're inserting sigma/phi functions for. Patch by Andre Tavares.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75138 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2009-07-09 15:59:27 +00:00
parent 4c12ee5f61
commit 89f43a5c70
3 changed files with 78 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/Transforms/Utils/SSI.cpp
View File

@ -282,12 +282,16 @@ void SSI::substituteUse(Instruction *I) {
}
/// Test if the BasicBlock BB dominates any use or definition of value.
/// If it dominates a phi instruction that is on the same BasicBlock,
/// that does not count.
///
bool SSI::dominateAny(BasicBlock *BB, Instruction *value) {
for (Value::use_iterator begin = value->use_begin(),
end = value->use_end(); begin != end; ++begin) {
Instruction *I = cast<Instruction>(*begin);
BasicBlock *BB_father = I->getParent();
if (BB == BB_father && isa<PHINode>(I))
continue;
if (DT_->dominates(BB, BB_father)) {
return true;
}

71
test/Transforms/SSI/2009-07-09-Invoke.ll Normal file
View File

@ -0,0 +1,71 @@
; RUN: llvm-as < %s | opt -ssi-everything -disable-output
; PR4511
%"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >" = type { %"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::_Vector_impl" }
%"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::_Vector_impl" = type { %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* }
%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >" = type { %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Alloc_hider" }
%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Alloc_hider" = type { i8* }
%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep" = type { %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep_base" }
%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep_base" = type { i32, i32, i32 }
%"struct.std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >" = type { %"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >" }
declare void @_Unwind_Resume(i8*)
declare fastcc %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* @_ZSt24__uninitialized_copy_auxIPSsS0_ET0_T_S2_S1_St12__false_type(%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*)
define fastcc void @_ZNSt6vectorISsSaISsEE9push_backERKSs(%"struct.std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >"* nocapture %this, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* nocapture %__x) {
entry:
br i1 undef, label %_ZNSt12_Vector_baseISsSaISsEE11_M_allocateEj.exit.i, label %bb
bb: ; preds = %entry
ret void
_ZNSt12_Vector_baseISsSaISsEE11_M_allocateEj.exit.i: ; preds = %entry
%0 = invoke fastcc %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* @_ZSt24__uninitialized_copy_auxIPSsS0_ET0_T_S2_S1_St12__false_type(%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* undef, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* undef, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* undef)
to label %invcont14.i unwind label %ppad81.i ; <%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*> [#uses=3]
invcont14.i: ; preds = %_ZNSt12_Vector_baseISsSaISsEE11_M_allocateEj.exit.i
%1 = icmp eq %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* %0, null ; <i1> [#uses=1]
br i1 %1, label %bb19.i, label %bb.i17.i
bb.i17.i: ; preds = %invcont14.i
%2 = invoke fastcc i8* @_ZNSs4_Rep8_M_cloneERKSaIcEj(%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep"* undef, i32 0)
to label %bb2.i25.i unwind label %ppad.i.i.i23.i ; <i8*> [#uses=0]
ppad.i.i.i23.i: ; preds = %bb.i17.i
invoke void @_Unwind_Resume(i8* undef)
to label %.noexc.i24.i unwind label %lpad.i29.i
.noexc.i24.i: ; preds = %ppad.i.i.i23.i
unreachable
bb2.i25.i: ; preds = %bb.i17.i
unreachable
lpad.i29.i: ; preds = %ppad.i.i.i23.i
invoke void @_Unwind_Resume(i8* undef)
to label %.noexc.i9 unwind label %ppad81.i
.noexc.i9: ; preds = %lpad.i29.i
unreachable
bb19.i: ; preds = %invcont14.i
%3 = getelementptr %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* %0, i32 1 ; <%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*> [#uses=2]
%4 = invoke fastcc %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* @_ZSt24__uninitialized_copy_auxIPSsS0_ET0_T_S2_S1_St12__false_type(%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* undef, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* undef, %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* %3)
to label %invcont20.i unwind label %ppad81.i ; <%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*> [#uses=0]
invcont20.i: ; preds = %bb19.i
unreachable
invcont32.i: ; preds = %ppad81.i
unreachable
ppad81.i: ; preds = %bb19.i, %lpad.i29.i, %_ZNSt12_Vector_baseISsSaISsEE11_M_allocateEj.exit.i
%__new_finish.0.i = phi %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"* [ %0, %lpad.i29.i ], [ undef, %_ZNSt12_Vector_baseISsSaISsEE11_M_allocateEj.exit.i ], [ %3, %bb19.i ] ; <%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >"*> [#uses=0]
br i1 undef, label %invcont32.i, label %bb.i.i.i.i
bb.i.i.i.i: ; preds = %bb.i.i.i.i, %ppad81.i
br label %bb.i.i.i.i
}
declare fastcc i8* @_ZNSs4_Rep8_M_cloneERKSaIcEj(%"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Rep"* nocapture, i32)

3
test/Transforms/SSI/dg.exp Normal file
View File

@ -0,0 +1,3 @@
load_lib llvm.exp
RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,c,cpp}]]