llvm-6502

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Commit Graph

Author	SHA1	Message	Date
Nadav Rotem	c8d12eee12	On AVX, we can load v8i32 at a time. The bug happens when two uneven loads are used. When we load the v12i32 type, the GenWidenVectorLoads method generates two loads: v8i32 and v4i32 and attempts to use CONCAT_VECTORS to join them. In this fix I concat undef values to widen the smaller value. The test "widen_load-2.ll" also exposes this bug on AVX. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147964 91177308-0d34-0410-b5e6-96231b3b80d8	2012-01-11 20:19:17 +00:00

Author

SHA1

Message

Date

Nadav Rotem

c8d12eee12

On AVX, we can load v8i32 at a time. The bug happens when two uneven loads are used.

When we load the v12i32 type, the GenWidenVectorLoads method generates two loads: v8i32 and v4i32 
and attempts to use CONCAT_VECTORS to join them. In this fix I concat undef values to widen 
the smaller value. The test "widen_load-2.ll" also exposes this bug on AVX.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147964 91177308-0d34-0410-b5e6-96231b3b80d8

2012-01-11 20:19:17 +00:00

1 Commits