Finishes adding basic inline-asm callbr support for AMDGPU, started by https://github.com/llvm/llvm-project/pull/149308.
A collection of small changes to get a number of lit tests working on z/OS.
First batch of changes to add support for inline-asm callbr for the AMDGPU backend.
If the PTEST is just using the ZF result and one of the operands is a i32/i64 sign mask we can use the TESTPD/PS instructions instead and avoid the use of an extra constant. Fixes some codegen identified in #156233
Not sure if this warrants a PR, but I realized there was a typo in a test filename from my previous PR #164387.
This reverts commit 78bf682cb9033cf6a5bbc733e062c7b7d825fdaf. Original PR: #157463 Revert PR: #158566 The relevant buildbots have been updated to a ROCm version that does not use the macros anymore to avoid the failures. Implements SWDEV-522062.
This patch allows us to narrow single bit-test/twiddle operations for larger than legal scalar integers to efficiently operate just on the i32 sub-integer block actually affected. The BITOP(X,SHL(1,IDX)) patterns are split, with the IDX used to access the specific i32 block as well as specific bit within that block. BT comparisons are relatively simple, and builds on the truncated shifted loads fold from #165266. BTC/BTR/BTS bit twiddling patterns need to match the entire RMW pattern to safely confirm only one block is affected, but a similar approach is taken and creates codegen that should allow us to further merge with matching BT opcodes in a future patch (see #165291). The resulting codegen is notably more efficient than the heavily micro-coded memory folded variants of BT/BTC/BTR/BTS. There is still some work to improve the bit insert 'init' patterns included in bittest-big-integer.ll but I'm expecting this to be a straightforward future extension. Fixes #164225
As noticed on #165676 - if we're increasing the use of an operand we should freeze it
It looks like the documentation for `llvm-cxxfilt`'s `--[no-]strip-underscore` options weren't updated when https://github.com/llvm/llvm-project/pull/106233 was made. CC @Michael137 (I don't have merge rights myself).