tree cbc015b700a580531b7b2709eeaae4128547c2d6
parent 9965f3d337bba09fbf2497a78123957fdaee0ffa
author Lei Huang <lei@ca.ibm.com> 1744055421 -0400
committer GitHub <noreply@github.com> 1744055421 -0400
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PowerPC32:PIC: Update to bcl to fix branch prediction mis-predict issue (#134140)

Update `bl` to `bcl 20, 31, .+4` for 32bit PIC code gen so the link
stack is 
not corrupted and cause mis-predict for the branch predictor.

fixes: https://github.com/llvm/llvm-project/issues/128644