RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-12-16 08:08:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix PR6019. A load has more than one use if it feeds a bitconvert that

Browse Source 
has more than one use.

llvm-svn: 93576
This commit is contained in:
David Greene 2010-01-15 23:23:41 +00:00
parent ea4d444561
commit e52529d7cb
2 changed files with 32 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/Target/X86/X86ISelDAGToDAG.cpp
View File

@ -384,8 +384,11 @@ static void MoveBelowTokenFactor(SelectionDAG *CurDAG, SDValue Load,
///
static bool isRMWLoad(SDValue N, SDValue Chain, SDValue Address,
SDValue &Load) {
if (N.getOpcode() == ISD::BIT_CONVERT)
if (N.getOpcode() == ISD::BIT_CONVERT) {
if (!N.hasOneUse())
return false;
N = N.getOperand(0);
}
LoadSDNode *LD = dyn_cast<LoadSDNode>(N);
if (!LD || LD->isVolatile())

28
test/CodeGen/X86/2010-01-15-SelectionDAGCycle.ll Normal file
View File

@ -0,0 +1,28 @@
; RUN: llc < %s -march=x86-64
; ModuleID = 'bugpoint-reduced-simplified.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
target triple = "x86_64-unknown-linux-gnu"
define void @numvec_(i32* noalias %ncelet, i32* noalias %ncel, i32* noalias %nfac, i32* noalias %nfabor, i32* noalias %lregis, i32* noalias %irveci, i32* noalias %irvecb, [0 x [2 x i32]]* noalias %ifacel, [0 x i32]* noalias %ifabor, [0 x i32]* noalias %inumfi, [0 x i32]* noalias %inumfb, [1 x i32]* noalias %iworkf, [0 x i32]* noalias %ismbs) {
"file bug754399.f90, line 1, bb1":
%r1037 = bitcast <2 x double> zeroinitializer to <4 x i32> ; <<4 x i32>> [#uses=1]
br label %"file bug754399.f90, line 184, in inner vector loop at depth 0, bb164"
"file bug754399.f90, line 184, in inner vector loop at depth 0, bb164": ; preds = %"file bug754399.f90, line 184, in inner vector loop at depth 0, bb164", %"file bug754399.f90, line 1, bb1"
%tmp641 = add i64 0, 48 ; <i64> [#uses=1]
%tmp641642 = inttoptr i64 %tmp641 to <4 x i32>* ; <<4 x i32>*> [#uses=1]
%r1258 = load <4 x i32>* %tmp641642, align 4 ; <<4 x i32>> [#uses=2]
%r1295 = extractelement <4 x i32> %r1258, i32 3 ; <i32> [#uses=1]
%r1296 = sext i32 %r1295 to i64 ; <i64> [#uses=1]
%r1297 = add i64 %r1296, -1 ; <i64> [#uses=1]
%r1298183 = getelementptr [0 x i32]* %ismbs, i64 0, i64 %r1297 ; <i32*> [#uses=1]
%r1298184 = load i32* %r1298183, align 4 ; <i32> [#uses=1]
%r1301 = extractelement <4 x i32> %r1037, i32 3 ; <i32> [#uses=1]
%r1302 = mul i32 %r1298184, %r1301 ; <i32> [#uses=1]
%r1306 = insertelement <4 x i32> zeroinitializer, i32 %r1302, i32 3 ; <<4 x i32>> [#uses=1]
%r1321 = add <4 x i32> %r1306, %r1258 ; <<4 x i32>> [#uses=1]
%tmp643 = add i64 0, 48 ; <i64> [#uses=1]
%tmp643644 = inttoptr i64 %tmp643 to <4 x i32>* ; <<4 x i32>*> [#uses=1]
store <4 x i32> %r1321, <4 x i32>* %tmp643644, align 4
br label %"file bug754399.f90, line 184, in inner vector loop at depth 0, bb164"
}