| ; RUN: opt -S -indvars < %s | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.11.0" |
| |
| @a = common global double* null, align 8 |
| @b = common global double 0.000000e+00, align 8 |
| |
| define void @fn1(i32 %p1) { |
| ; CHECK-LABEL: @fn1( |
| entry: |
| %ld = load double*, double** @a, align 8 |
| br label %outer.loop |
| |
| outer.loop: |
| %iv.outer = phi i32 [ %p1, %entry ], [ %iv.outer.dec, %outer.be ] |
| %idxprom = sext i32 %iv.outer to i64 |
| %arrayidx = getelementptr inbounds double, double* %ld, i64 %idxprom |
| %arrayidx.bc = bitcast double* %arrayidx to i64* |
| br label %inner.loop |
| |
| inner.loop: |
| %iv.inner = phi i32 [ %iv.outer, %outer.loop ], [ %iv.inner.dec, %inner.loop ] |
| %ld.arr = load i64, i64* %arrayidx.bc, align 8 |
| store i64 %ld.arr, i64* bitcast (double* @b to i64*), align 8 |
| %iv.inner.dec = add nsw i32 %iv.inner, -1 |
| %cmp = icmp slt i32 %iv.outer, %iv.inner.dec |
| br i1 %cmp, label %outer.be, label %inner.loop |
| |
| outer.be: |
| %iv.outer.dec = add nsw i32 %iv.outer, -1 |
| br label %outer.loop |
| } |
