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- From: Arvind Krishnaswamy <arvind at CS dot Arizona dot EDU>
- To: <gcc at gcc dot gnu dot org>
- Date: Tue, 7 May 2002 12:43:23 -0700 (MST)
- Subject: xscale-elf-gcc
When I use the march=armv4t option with the xscale-elf-gcc compiler,
what pipeline does it target? Does it use armv4t compliant instructions
but still target the xscale pipeline? The reason I ask is because I
notice that the compiler chooses to predicate branches even when the sequences
are long (branches would incur 1 stall but long sequences of predicated code
would result in no-ops).
When I specify mcpu=strongarm and march=armv4 the compiler complains about
a conflict. Isn't the strongarm compliant with armv4?
Another question: which is the first arm processor to support thumb instructions?