For reference, here's the original discussion between David and Richard: http://lists.linaro.org/pipermail/linaro-toolchain/2010-July/000030.html http://lists.linaro.org/pipermail/linaro-toolchain/2010-July/000035.html
My summary is: * IT instructions are ignored in ARM mode and hence add no overhead * gas has had IT support for 'around 5 years'
For reference, here's the original discussion between David and Richard: lists.linaro. org/pipermail/ linaro- toolchain/ 2010-July/ 000030. html lists.linaro. org/pipermail/ linaro- toolchain/ 2010-July/ 000035. html
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My summary is:
* IT instructions are ignored in ARM mode and hence add no overhead
* gas has had IT support for 'around 5 years'