re PR target/19700 (ICE in final_scan_insn with O1 -g -march=athlon-xp -mfpmath=sse)
PR target/19700 * config/i386/i386.c (ix86_expand_copysign): New. (ix86_split_copysign_const): New. (ix86_split_copysign_var): Rename from ix86_split_copysign, rearrange op1/nmask operands. * config/i386/i386-protos.h: Update. * config/i386/i386.md (copysignsf3): Use ix86_expand_copysign. (copysigndf3): Likewise. (copysignsf3_const, copysigndf3_const): New. (copysignsf3_var): Rename from copysignsf3, split out splitter and fix split predicate for X constraint. (copysigndf3_var): Similarly. From-SVN: r94442
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