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Overview
Comment: | Simplify some code in rtree, to avoid confusing the optimizer in GCC on some macs: gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00). Prior to these changes, compiling with -O3 would cause incorrect code to be generated. The change to the nodeGetCell() routine is key. The other changes are merely cosmetic details discovered while bug hunting. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
882181ff9dd75f32db266db6e4766710 |
User & Date: | drh 2015-01-13 21:26:17.584 |
Context
2015-01-15
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15:47 | Makefile enhancements: (1) Rename autoconf/tea/configure.in to autoconf/tea/configure.ac so that it works with the latest versions of autoconf. (2) Add the "amalgamation-tarball" targets to Makefile.in and main.mk (renamed from "dist" in the latter case). (3) Update the README.first file in autoconf/ (4) The TOP macro in Makefile.in is now an absolute rather than a relative path. (check-in: 3bafeec934 user: drh tags: trunk) | |
2015-01-14
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17:16 | Merge trunk 3.8.8 beta changes into the sessions branch (check-in: 0ba124540b user: drh tags: sessions) | |
2015-01-13
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21:26 | Simplify some code in rtree, to avoid confusing the optimizer in GCC on some macs: gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00). Prior to these changes, compiling with -O3 would cause incorrect code to be generated. The change to the nodeGetCell() routine is key. The other changes are merely cosmetic details discovered while bug hunting. (check-in: 882181ff9d user: drh tags: trunk) | |
01:12 | Fix the e_walauto.test test module so that it works on both little-endian and big-ending machines. (check-in: 5682db7b87 user: drh tags: trunk) | |
Changes
Changes to ext/rtree/rtree.c.
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365 366 367 368 369 370 371 | ** Functions to deserialize a 16 bit integer, 32 bit real number and ** 64 bit integer. The deserialized value is returned. */ static int readInt16(u8 *p){ return (p[0]<<8) + p[1]; } static void readCoord(u8 *p, RtreeCoord *pCoord){ | | < | 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 | ** Functions to deserialize a 16 bit integer, 32 bit real number and ** 64 bit integer. The deserialized value is returned. */ static int readInt16(u8 *p){ return (p[0]<<8) + p[1]; } static void readCoord(u8 *p, RtreeCoord *pCoord){ pCoord->u = ( (((u32)p[0]) << 24) + (((u32)p[1]) << 16) + (((u32)p[2]) << 8) + (((u32)p[3]) << 0) ); } static i64 readInt64(u8 *p){ return ( (((i64)p[0]) << 56) + (((i64)p[1]) << 48) + (((i64)p[2]) << 40) + (((i64)p[3]) << 32) + |
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400 401 402 403 404 405 406 | p[1] = (i>> 0)&0xFF; return 2; } static int writeCoord(u8 *p, RtreeCoord *pCoord){ u32 i; assert( sizeof(RtreeCoord)==4 ); assert( sizeof(u32)==4 ); | | | 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 | p[1] = (i>> 0)&0xFF; return 2; } static int writeCoord(u8 *p, RtreeCoord *pCoord){ u32 i; assert( sizeof(RtreeCoord)==4 ); assert( sizeof(u32)==4 ); i = pCoord->u; p[0] = (i>>24)&0xFF; p[1] = (i>>16)&0xFF; p[2] = (i>> 8)&0xFF; p[3] = (i>> 0)&0xFF; return 4; } static int writeInt64(u8 *p, i64 i){ |
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731 732 733 734 735 736 737 | static void nodeGetCell( Rtree *pRtree, /* The overall R-Tree */ RtreeNode *pNode, /* The node containing the cell to be read */ int iCell, /* Index of the cell within the node */ RtreeCell *pCell /* OUT: Write the cell contents here */ ){ u8 *pData; | < > < | | | 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 | static void nodeGetCell( Rtree *pRtree, /* The overall R-Tree */ RtreeNode *pNode, /* The node containing the cell to be read */ int iCell, /* Index of the cell within the node */ RtreeCell *pCell /* OUT: Write the cell contents here */ ){ u8 *pData; RtreeCoord *pCoord; int ii; pCell->iRowid = nodeGetRowid(pRtree, pNode, iCell); pData = pNode->zData + (12 + pRtree->nBytesPerCell*iCell); pCoord = pCell->aCoord; for(ii=0; ii<pRtree->nDim*2; ii++){ readCoord(&pData[ii*4], &pCoord[ii]); } } /* Forward declaration for the function that does the work of ** the virtual table module xCreate() and xConnect() methods. */ |
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