1; RUN: opt -S -passes=indvars < %s | FileCheck %s 2 3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-apple-macosx10.11.0" 5 6@a = common global ptr null, align 8 7@b = common global double 0.000000e+00, align 8 8 9define void @fn1(i32 %p1) { 10; CHECK-LABEL: @fn1( 11entry: 12 %ld = load ptr, ptr @a, align 8 13 br label %outer.loop 14 15outer.loop: 16 %iv.outer = phi i32 [ %p1, %entry ], [ %iv.outer.dec, %outer.be ] 17 %idxprom = sext i32 %iv.outer to i64 18 %arrayidx = getelementptr inbounds double, ptr %ld, i64 %idxprom 19 br label %inner.loop 20 21inner.loop: 22 %iv.inner = phi i32 [ %iv.outer, %outer.loop ], [ %iv.inner.dec, %inner.loop ] 23 %ld.arr = load i64, ptr %arrayidx, align 8 24 store i64 %ld.arr, ptr @b, align 8 25 %iv.inner.dec = add nsw i32 %iv.inner, -1 26 %cmp = icmp slt i32 %iv.outer, %iv.inner.dec 27 br i1 %cmp, label %outer.be, label %inner.loop 28 29outer.be: 30 %iv.outer.dec = add nsw i32 %iv.outer, -1 31 br label %outer.loop 32} 33