http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49781
--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-03 14:10:25 UTC --- (In reply to comment #6) > Created attachment 24899 [details] > Proposed patch that exploits addr32. > > H.J., can you please test this patch on mx32. > > The patch bootstraps and regression tests OK on x86_64-pc-linux-gnu {,-m32}. It failed the testcase for PR 47744, which I just checked in: [hjl@gnu-33 ilp32-24]$ /export/build/gnu/gcc-x32-test/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc-x32-test/build-x86_64-linux/gcc/ -S -o x.s -mx32 -O3 -std=gnu99 /export/gnu/import/git/gcc-x32/gcc/testsuite/gcc.dg/torture/pr47744-2.c /export/gnu/import/git/gcc-x32/gcc/testsuite/gcc.dg/torture/pr47744-2.c: In function \u2018matmul_i16\u2019: /export/gnu/import/git/gcc-x32/gcc/testsuite/gcc.dg/torture/pr47744-2.c:40:1: error: insn does not satisfy its constraints: (insn 146 66 67 4 (set (reg:TI 0 ax) (mem:TI (zero_extend:DI (plus:SI (reg:SI 4 si [orig:119 ivtmp.30 ] [119]) (reg:SI 5 di [orig:102 dest_y ] [102]))) [6 MEM[base: dest_y_18, index: ivtmp.30_63, offset: 0B]+0 S16 A128])) /export/gnu/import/git/gcc-x32/gcc/testsuite/gcc.dg/torture/pr47744-2.c:34 60 {*movti_internal_rex64} (nil)) /export/gnu/import/git/gcc-x32/gcc/testsuite/gcc.dg/torture/pr47744-2.c:40:1: internal compiler error: in reload_cse_simplify_operands, at postreload.c:403 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. [hjl@gnu-33 ilp32-24]$