[Bug target/20540] "-march=i386" doesn't mean "limit instruction set to what 80386 understands"

[zeev dot tarantov at gmail dot com]

------- Additional Comments From zeev dot tarantov at gmail dot com  2005-03-18 20:36 -------
Created an attachment (id=8420)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8420&action=view)
testcase unexpected output

this is what I get from "gcc -march=i386 -O3 -S -g opcode.c -o opcode.i386.s".
Notice the "movzbl" on line 28. I don't have a 80386 to test it, but I doubt it
supports this.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20540