[clang] [llvm] [AVR] Fix Avr indvar detection and strength reduction (missed optimization) (PR #152028)

[Ben Shi via cfe-commits]

================
@@ -76,26 +76,26 @@ while.end:                                        ; preds = 
%while.body, %entry
   ret i8 %r.0.lcssa
 }
 
-define i16 @load16postinc(ptr %x, i16 %y) {
+define i16 @load16postinc(ptr %p, i16 %cnt) {
 ; CHECK-LABEL: load16postinc:
 ; CHECK: ld {{.*}}, {{[XYZ]}}+
 ; CHECK: ld {{.*}}, {{[XYZ]}}+
 entry:
-  %tobool2 = icmp eq i16 %y, 0
----------------
benshi001 wrote:

It would be better to keep this old test, while adding your test as a new case..

https://github.com/llvm/llvm-project/pull/152028
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