Ulrich Weigand 848a513d0a [SystemZ] Support conditional indirect sibling calls via BCR ...

This adds a conditional variant of CallBR instruction, CallBCR. Also,
it can be fused with integer comparisons, resulting in one of the new
C*BCall instructions.

In addition to CallBRCL limitations, this has another one: it won't
trigger if the function to call isn't already in %r1 - see f22 in the
test for an example (it's also why the loads in tests are volatile).

Author: koriakin
Differential Revision: http://reviews.llvm.org/D18928

llvm-svn: 265933

2016-04-11 12:12:32 +00:00

9.3 KiB

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