[llvm-branch-commits] [llvm] [AMDGPU] Respect MBB alignment in the getFunctionCodeSize() (PR #127142)

[Stanislav Mekhanoshin via llvm-branch-commits]

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@@ -212,6 +212,8 @@ uint64_t SIProgramInfo::getFunctionCodeSize(const MachineFunction &MF) {
   uint64_t CodeSize = 0;
 
   for (const MachineBasicBlock &MBB : MF) {
+    CodeSize = alignTo(CodeSize, MBB.getAlignment());
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rampitec wrote:

Pessimistic overestimate is actually worse for some applications of this function. For what I am doing now it may result prefetching memory far beyond the program. I believe our estimates shall be correct except for inline asm...

https://github.com/llvm/llvm-project/pull/127142