[PATCH] D70367: Fix for AMDGPU MUL_I24 known bits calculation

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/test/CodeGen/AMDGPU/amdgpu-mul24-knownbits.ll:15-25
+  %tid_y = lshr i32 %5, 4
+  %tid_x = and i32 %5, 15
+
+  %y_div_5 = sdiv i32 %tid_y, 5
+  %6 = mul nsw i32 %y_div_5, -5
+  %y_mod_5 = add nsw i32 %6, %tid_y
+  %v1 = add nsw i32 %tid_x, %y_mod_5
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This testcase is far too big. You should be able to reduce it to a handful of instsructions, probably these ones


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D70367/new/

https://reviews.llvm.org/D70367