altivec Questions

1

Solved

I'm suffering GCC inline assembly on PowerPC. The program compiles fine with -g2 -O3, but fails to compile with -g3 -O0. The problem is, I need to observe it under the debugger so I need symbols wi...
Remediosremedy asked 1/11, 2018 at 14:56

1

Solved

I'm working on a PowerPC machine with in-core crypto. I'm having trouble porting AES key expansion from big endian to little endian using built-ins. Big endian works, but little endian does not. T...
Wiese asked 21/9, 2017 at 10:46

1

I'm trying to write a stream compaction (take an array and get rid of empty elements) with SIMD intrinsics. Each iteration of the loop processes 8 elements at a time (SIMD width). With SSE intrins...
Precept asked 7/6, 2011 at 19:36

5

I've written several copy functions in search of a good memory strategy on PowerPC. Using the Altivec or fp registers with cache hints (dcb*) doubles the performance over a simple byte copy loop fo...
Ol asked 2/1, 2010 at 1:57
1

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