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| ; RUN: opt < %s -indvars -S | FileCheck %s
; Indvars should do the IV arithmetic in the canonical IV type (i64),
; and only use one truncation.
define void @foo(i64* %A, i64* %B, i64 %n, i64 %a, i64 %s) nounwind {
; CHECK-LABEL: @foo(
; CHECK-NOT: trunc
; CHECK: and
; CHECK-NOT: and
entry:
%t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1]
br i1 %t0, label %bb.preheader, label %return
bb.preheader: ; preds = %entry
br label %bb
bb: ; preds = %bb, %bb.preheader
%i.01 = phi i64 [ %t6, %bb ], [ %a, %bb.preheader ] ; <i64> [#uses=3]
%t1 = and i64 %i.01, 255 ; <i64> [#uses=1]
%t2 = getelementptr i64, i64* %A, i64 %t1 ; <i64*> [#uses=1]
store i64 %i.01, i64* %t2, align 8
%t6 = add i64 %i.01, %s ; <i64> [#uses=1]
br label %bb
return: ; preds = %entry
ret void
}
|