archived-llvm

mirror of https://github.com/RPCSX/llvm.git synced 2026-01-31 01:05:23 +01:00

Files

Yaxun Liu f570b5fd16 Fix known zero bits for addrspacecast.

Currently LLVM assumes that a pointer addrspacecasted to a different addr space is equivalent to trunc or zext bitwise, which is not true. For example, in amdgcn target, when a null pointer is addrspacecasted from addr space 4 to 0, its value is changed from i64 0 to i32 -1.

This patch teaches LLVM not to assume known bits of addrspacecast instruction to its operand.

Differential Revision: https://reviews.llvm.org/D26803


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287545 91177308-0d34-0410-b5e6-96231b3b80d8

2016-11-21 15:42:31 +00:00

assume.ll

[ValueTracking] do not overwrite analysis results already computed

2015-06-15 05:46:29 +00:00

deref-bitcast-of-gep.ll

Reduce dependence on pointee types when deducing dereferenceability

2016-06-01 16:47:45 +00:00

dereferenceable-and-aligned.ll

[Loads] Fix crash in is isDereferenceableAndAlignedPointer()

2016-10-28 15:32:28 +00:00

get-pointer-base-with-const-off.ll

[ValueTracking] Fix crash in GetPointerBaseWithConstantOffset()