tree 09301564138db266167d19ad9483fa8367e09840
parent 52e9e828985f9a47274eb6bde18bf80690a6e693
author YixingZhang007 <yixing.zhang@intel.com> 1773758541 -0400
committer GitHub <noreply@github.com> 1773758541 +0100
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[SPIR-V] Add support for arbitrary precision integer constants in instruction printer (#185306)

This PR improves the SPIR-V instruction printer output for integer
constants using `SPV_ALTERA_arbitrary_precision_integers` extension.

Previously, when `OpConstantI` was encoded with multiple 32-bit words
(for integer widths > 64), the inst printer printed the raw per-word
immediates. This was hard to read and did not reflect the actual value
at the declared integer bitwidth.

Now, with the change in this patch, the instruction printer reconstructs
the multi-word literal into a single `APInt`, truncates it to the
bitwidth declared by the corresponding `OpTypeInt`, and prints the
resulting value as one readable integer (including correct negative
values where applicable).

---------

Co-authored-by: yixing.zhang <yixingzh@smtp.igk.intel.com>