Mercurial > projects > ldc

comparison gen/toir.cpp @ 575:f0c20d50d4b3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Pointer comparisons were being treated as signed integers. Now they are handled as unsigned integers.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Thu, 04 Sep 2008 17:24:10 +0200
parents aee6217b4084
children fbb1a366cfbc
comparison
equal deleted inserted replaced
574:aee6217b4084 575:f0c20d50d4b3
1176 1176
1177 if (t->isintegral() || t->ty == Tpointer) 1177 if (t->isintegral() || t->ty == Tpointer)
1178 { 1178 {
1179 llvm::ICmpInst::Predicate cmpop; 1179 llvm::ICmpInst::Predicate cmpop;
1180 bool skip = false; 1180 bool skip = false;
1181 // pointers don't report as being unsigned
1182 bool uns = (t->isunsigned() || t->ty == Tpointer);
1181 switch(op) 1183 switch(op)
1182 { 1184 {
1183 case TOKlt: 1185 case TOKlt:
1184 case TOKul: 1186 case TOKul:
1185 cmpop = t->isunsigned() ? llvm::ICmpInst::ICMP_ULT : llvm::ICmpInst::ICMP_SLT; 1187 cmpop = uns ? llvm::ICmpInst::ICMP_ULT : llvm::ICmpInst::ICMP_SLT;
1186 break; 1188 break;
1187 case TOKle: 1189 case TOKle:
1188 case TOKule: 1190 case TOKule:
1189 cmpop = t->isunsigned() ? llvm::ICmpInst::ICMP_ULE : llvm::ICmpInst::ICMP_SLE; 1191 cmpop = uns ? llvm::ICmpInst::ICMP_ULE : llvm::ICmpInst::ICMP_SLE;
1190 break; 1192 break;
1191 case TOKgt: 1193 case TOKgt:
1192 case TOKug: 1194 case TOKug:
1193 cmpop = t->isunsigned() ? llvm::ICmpInst::ICMP_UGT : llvm::ICmpInst::ICMP_SGT; 1195 cmpop = uns ? llvm::ICmpInst::ICMP_UGT : llvm::ICmpInst::ICMP_SGT;
1194 break; 1196 break;
1195 case TOKge: 1197 case TOKge:
1196 case TOKuge: 1198 case TOKuge:
1197 cmpop = t->isunsigned() ? llvm::ICmpInst::ICMP_UGE : llvm::ICmpInst::ICMP_SGE; 1199 cmpop = uns ? llvm::ICmpInst::ICMP_UGE : llvm::ICmpInst::ICMP_SGE;
1198 break; 1200 break;
1199 case TOKue: 1201 case TOKue:
1200 cmpop = llvm::ICmpInst::ICMP_EQ; 1202 cmpop = llvm::ICmpInst::ICMP_EQ;
1201 break; 1203 break;
1202 case TOKlg: 1204 case TOKlg: