diff options
Diffstat (limited to 'sys-devel/gcc/files/3.2.2/gcc32-pr8213.patch')
| -rw-r--r-- | sys-devel/gcc/files/3.2.2/gcc32-pr8213.patch | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/sys-devel/gcc/files/3.2.2/gcc32-pr8213.patch b/sys-devel/gcc/files/3.2.2/gcc32-pr8213.patch new file mode 100644 index 0000000..762d198 --- /dev/null +++ b/sys-devel/gcc/files/3.2.2/gcc32-pr8213.patch @@ -0,0 +1,69 @@ +2002-10-30 Jan Hubicka <jh@suse.cz> + + PR target/8213 + * config/i386/i386.c (ix86_expand_int_movcc): Fix RTL sharing problem. + +2002-11-04 Gwenole Beauchesne <gbeauchesne@mandrakesoft.com> + + * testsuite/gcc.c-torture/execute/20021104.c: New test. + +--- gcc-3.2/gcc/config/i386/i386.c.pr8213 2002-11-04 12:56:37.000000000 -0500 ++++ gcc-3.2/gcc/config/i386/i386.c 2002-11-04 13:21:22.000000000 -0500 +@@ -8274,11 +8274,11 @@ ix86_expand_int_movcc (operands) + /* On x86_64 the lea instruction operates on Pmode, so we need to get arithmetics + done in proper mode to match. */ + if (diff == 1) +- tmp = out; ++ tmp = copy_rtx (out); + else + { + rtx out1; +- out1 = out; ++ out1 = copy_rtx (out); + tmp = gen_rtx_MULT (mode, out1, GEN_INT (diff & ~1)); + nops++; + if (diff & 1) +@@ -8302,12 +8302,12 @@ ix86_expand_int_movcc (operands) + clob = gen_rtx_REG (CCmode, FLAGS_REG); + clob = gen_rtx_CLOBBER (VOIDmode, clob); + +- tmp = gen_rtx_SET (VOIDmode, out, tmp); ++ tmp = gen_rtx_SET (VOIDmode, copy_rtx (out), tmp); + tmp = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, copy_rtx (tmp), clob)); + emit_insn (tmp); + } + else +- emit_insn (gen_rtx_SET (VOIDmode, out, tmp)); ++ emit_insn (gen_rtx_SET (VOIDmode, copy_rtx (out), tmp)); + } + if (out != operands[0]) + emit_move_insn (operands[0], copy_rtx (out)); +--- gcc-3.2/gcc/testsuite/gcc.c-torture/execute/20021104.c.pr8213 2002-11-04 13:22:33.000000000 -0500 ++++ gcc-3.2/gcc/testsuite/gcc.c-torture/execute/20021104.c 2002-11-04 13:24:12.000000000 -0500 +@@ -0,0 +1,26 @@ ++/* PR target/8213 ++ This testcase, distilled from GNU gmp 4.1, was miscompiled on x86-64 ++ because of RTL sharing problems. */ ++ ++int f(long x, long y) ++{ ++ if ((x < 0) == (y < 0)) ++ { ++ if (x == 0) ++ return -(y != 0); ++ if (y == 0) ++ return x != 0; ++ } ++ else ++ { ++ return x >= 0 ? 1 : -1; ++ } ++} ++ ++int main(void) ++{ ++ if (f(-1, 1) != -1) ++ abort(); ++ ++ return 0; ++} |