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authorJoseph Myers <joseph@codesourcery.com>2008-12-03 19:36:05 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-03 19:36:05 -0800
commit726c12f57d7e3ff43693d88e13b1ff02464c75d3 (patch)
tree66e85c2c65fa99e3b256cb77678109916d91bfa9 /fs/minix/namei.c
parente8e8e80ee047b131a0cd6a3e96e0f8dfa14f6d99 (diff)
sparc64: Fix VIS emulation bugs
This patch fixes some bugs in VIS emulation that cause the GCC test failure FAIL: gcc.target/sparc/pdist-3.c execution test for both 32-bit and 64-bit testing on hardware lacking these instructions. The emulation code for the pdist instruction uses RS1(insn) for both source registers rs1 and rs2, which is obviously wrong and leads to the instruction doing nothing (the observed problem), and further inspection of the code shows that RS1 uses a shift of 24 and RD a shift of 25, which clearly cannot both be right; examining SPARC documentation indicates the correct shift for RS1 is 14. This patch fixes the bug if single-stepping over the affected instruction in the debugger, but not if the testcase is run standalone. For that, Wind River has another patch I hope they will send as a followup to this patch submission. Signed-off-by: Joseph Myers <joseph@codesourcery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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