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* [mips][mips64r6] [ls][dw][lr] are not available in MIPS32r6/MIPS64r6Daniel Sanders2014-05-231-75/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Instead the system is required to provide some means of handling unaligned load/store without special instructions. Options include full hardware support, full trap-and-emulate, and hybrids such as hardware support within a cache line and trap-and-emulate for multi-line accesses. MipsSETargetLowering::allowsUnalignedMemoryAccesses() has been configured to assume that unaligned accesses are 'fast' on the basis that I expect few hardware implementations will opt for pure-software handling of unaligned accesses. The ones that do handle it purely in software can override this. mips64-load-store-left-right.ll has been merged into load-store-left-right.ll The stricter testing revealed a Bits!=Bytes bug in passByValArg(). This has been fixed and the variables renamed to clarify the units they hold. Reviewers: zoran.jovanovic, jkolek, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D3872 llvm-svn: 209512
* [mips] MIPS-IV is broadly the same as MIPS64 so duplicate all -mcpu=mips64 ↵Daniel Sanders2014-04-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tests with -mcpu=mips4 as a starting point Summary: Two exceptions to this: test/CodeGen/Mips/octeon.ll test/CodeGen/Mips/octeon_popcnt.ll these test extensions to MIPS64 One test is altered for MIPS-IV: test/CodeGen/Mips/mips64countleading.ll Tests dclo/dclz which were added in MIPS64. The MIPS-IV version tests that dclo/dclz are not emitted. Four tests fail and are not in this patch: test/CodeGen/Mips/abicalls.ll test/CodeGen/Mips/fcopysign-f32-f64.ll test/CodeGen/Mips/fcopysign.ll test/CodeGen/Mips/stack-alignment.ll Depends on D3343 Reviewers: matheusalmeida, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D3344 llvm-svn: 206185
* Add a test case for mips64 unaligned load/store instructions.Akira Hatanaka2012-06-041-0/+73
llvm-svn: 157939
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