[llvm] [AMDGPU] IGLP: Fixes for VMEM load detection and unsigned int handling (PR #135090)

[Robert Imschweiler via llvm-commits]

================
@@ -321,6 +321,28 @@ entry:
   ret void
 }
 
+; Check fixes for:
+; - detection of VMEM_READS which are FLAT loads.
+; - unsigned int underflows in MFMASmallGemmSingleWaveOpt::applyIGLPStrategy.
+; - resetting global static DSWCounters for new runs.
+; (reduced fuzzer-generated test case)
+define amdgpu_kernel void @test_iglp_opt_flat_load(ptr %ptr1, ptr %ptr2, ptr addrspace(3) %ptr3, ptr addrspace(3) %ptr4) {
----------------
ro-i wrote:

sorry, it was apparently too late yesterday :/

https://github.com/llvm/llvm-project/pull/135090