Files
clang-p2996/llvm/test/CodeGen/SystemZ
Craig Topper e4b4a939f8 [MCP] Disable BackwardCopyPropagateBlock for copies with implicit registers. (#137687)
If there's an implicit-def of a super register, the propagation
must preserve this implicit-def. Knowing how and when to do this
may require target specific knowledge so just disable it for now.
    
Prior to 2def1c4, we checked that the copy had explicit 2 operands
when that was removed we started allowing implicit operands through.
This patch adds a check for implicit operands, but still allows
extra explicit operands which was the goal of 2def1c4.
    
Fixes #131478.
2025-05-08 16:27:08 -07:00
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