| 123456789101112131415161718192021222324 |
- ; RUN: opt < %s -indvars -loop-deletion -S |FileCheck %s
- ; Check IndVarSimplify should replace exit value even if the expansion cost
- ; is high because the loop can be deleted after the exit value rewrite.
- ;
- ; CHECK-LABEL: @_Z3fooPKcjj(
- ; CHECK: udiv
- ; CHECK: [[LABEL:^[a-zA-Z0-9_.]+]]:
- ; CHECK-NOT: br {{.*}} [[LABEL]]
- define i32 @_Z3fooPKcjj(i8* nocapture readnone %s, i32 %len, i32 %c) #0 {
- entry:
- br label %while.cond
- while.cond: ; preds = %while.cond, %entry
- %klen.0 = phi i32 [ %len, %entry ], [ %sub, %while.cond ]
- %cmp = icmp ugt i32 %klen.0, 11
- %sub = add i32 %klen.0, -12
- br i1 %cmp, label %while.cond, label %while.end
- while.end: ; preds = %while.cond
- %klen.0.lcssa = phi i32 [ %klen.0, %while.cond ]
- ret i32 %klen.0.lcssa
- }
|