diff options
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 10 |
2 files changed, 15 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d2560018b8e..401d2a56fb9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ +2007-04-16 H.J. Lu <hongjiu.lu@intel.com> + + PR target/31582 + * config/i386/i386.c (ix86_expand_vec_set_builtin): Make a + copy of source, pass it to ix86_expand_vector_set and return + it as target. + 2007-04-16 David Ung <davidu@mips.com> - Joseph Myers <joseph@codesourcery.com> + Joseph Myers <joseph@codesourcery.com> * config/mips/mips.h (PROCESSOR_74KC, PROCESSOR_74KF, PROCESSOR_74KX, TUNE_74K, GENERATE_MADD_MSUB): Define. diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 9f4ed758079..ecc2e6bb1c7 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -17902,7 +17902,7 @@ ix86_expand_vec_set_builtin (tree exp) enum machine_mode tmode, mode1; tree arg0, arg1, arg2; int elt; - rtx op0, op1; + rtx op0, op1, target; arg0 = CALL_EXPR_ARG (exp, 0); arg1 = CALL_EXPR_ARG (exp, 1); @@ -17922,9 +17922,13 @@ ix86_expand_vec_set_builtin (tree exp) op0 = force_reg (tmode, op0); op1 = force_reg (mode1, op1); - ix86_expand_vector_set (true, op0, op1, elt); + /* OP0 is the source of these builtin functions and shouldn't be + modifified. Create a copy, use it and return it as target. */ + target = gen_reg_rtx (tmode); + emit_move_insn (target, op0); + ix86_expand_vector_set (true, target, op1, elt); - return op0; + return target; } /* Expand an expression EXP that calls a built-in function, |