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Hi, this patch is a fix for pr27127. It avoids splitting the DI registers into SI ones if it is not allowed, which breaks the introduced loop. I haven't added a testcase as the bug is already exhibited by several regressions (like g++.dg/ext/attribute-test-2.C or g++.dg/eh/simd-1.C) but I can add one if you think it is needed. Cross built and regtested on trunk and gcc-5 branch and the regression mentioned in https://gcc.gnu.org/ml/gcc-patches/2015-07/msg00216.html is not observed. Is it ok for trunk and branch ? Thanks, Yvan gcc/ PR target/67127 * config/arm/arm.md (movdi): Avoid forbidden modes changed.
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