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This patch addresses an issue in which soft-fp truncation fails to raise underflow, the issue was found while porting glibc to aarch64, relevant posts on libc-ports start here: http://sourceware.org/ml/libc-ports/2012-11/msg00017.html This patch has been tested by updating the copy of soft-fp in gcc and running the glibc test suite for aarch64. OK? /Marcus 2012-11-13 Marcus Shawcroft <marcus.shawcroft@linaro.org> * soft-fp/op-common.h (_FP_PACK_SEMIRAW): Move underflow detection to immediately after _FP_ROUND(). * soft-fp/soft-fp.h (_FP_ROUND): Don't round if working bits are 0.
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