6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-03-20 11:32:33 +00:00
Code Issues Projects Releases Wiki Activity

The ANDMask node folds to a constant, and isn't the node that needs to

Browse Source 
have its node id set. The new and and shift nodes are the nodes that need
the IDs. This fixes PR2982.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58655 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-11-03 23:43:55 +00:00
parent b6dc9352b0
commit f6503a031e
2 changed files with 28 additions and 2 deletions
lib/Target/X86
X86ISelDAGToDAG.cpp
test/CodeGen/X86
pr2982.ll

4
lib/Target/X86/X86ISelDAGToDAG.cpp

@ -993,8 +993,8 @@ bool X86DAGToDAGISel::MatchAddress(SDValue N, X86ISelAddressMode &AM,
Shift.getOperand(0), NewANDMask);
SDValue NewSHIFT = CurDAG->getNode(ISD::SHL, N.getValueType(),
NewAND, SDValue(C1, 0));
NewANDMask.getNode()->setNodeId(Shift.getNode()->getNodeId());
NewAND.getNode()->setNodeId(N.getNode()->getNodeId());
NewAND.getNode()->setNodeId(Shift.getNode()->getNodeId());
NewSHIFT.getNode()->setNodeId(N.getNode()->getNodeId());
CurDAG->ReplaceAllUsesWith(N, NewSHIFT);
AM.Scale = 1 << ShiftCst;

26
test/CodeGen/X86/pr2982.ll Normal file

@ -0,0 +1,26 @@
; RUN: llvm-as < %s | llc -march=x86
; PR2982
target datalayout =
"e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9.5"
@g_279 = external global i32 ; <i32*> [#uses=1]
@g_265 = external global i32 ; <i32*> [#uses=1]
@g_3 = external global i8 ; <i8*> [#uses=1]
declare i32 @rshift_u_u(...)
define void @bar() nounwind {
entry:
%0 = load i32* @g_279, align 4 ; <i32> [#uses=1]
%1 = shl i32 %0, 1 ; <i32> [#uses=1]
%2 = and i32 %1, 2 ; <i32> [#uses=1]
%3 = load i32* @g_265, align 4 ; <i32> [#uses=1]
%4 = load i8* @g_3, align 1 ; <i8> [#uses=1]
%5 = sext i8 %4 to i32 ; <i32> [#uses=1]
%6 = add i32 %2, %3 ; <i32> [#uses=1]
%7 = add i32 %6, %5 ; <i32> [#uses=1]
%8 = tail call i32 (...)* @rshift_u_u(i32 %7, i32 0) nounwind
; <i32> [#uses=0]
ret void
}