41 lines · plain
1; RUN: opt -S -passes=loop-rotate -verify-memoryssa < %s | FileCheck %s2target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"3target triple = "x86_64-apple-darwin10.0"4 5; PR58376define void @test(i32 %N, ptr %G) nounwind ssp {7entry:8 br label %for.cond9 10for.cond: ; preds = %for.body, %entry11 %j.0 = phi i64 [ 1, %entry ], [ %inc, %for.body ] ; <i64> [#uses=5]12 %cmp = icmp slt i64 %j.0, 1000 ; <i1> [#uses=1]13 br i1 %cmp, label %for.body, label %for.end14 15for.body: ; preds = %for.cond16 %arrayidx = getelementptr inbounds double, ptr %G, i64 %j.0 ; <ptr> [#uses=1]17 %tmp3 = load double, ptr %arrayidx ; <double> [#uses=1]18 %sub = sub i64 %j.0, 1 ; <i64> [#uses=1]19 %arrayidx6 = getelementptr inbounds double, ptr %G, i64 %sub ; <ptr> [#uses=1]20 %tmp7 = load double, ptr %arrayidx6 ; <double> [#uses=1]21 %add = fadd double %tmp3, %tmp7 ; <double> [#uses=1]22 %arrayidx10 = getelementptr inbounds double, ptr %G, i64 %j.0 ; <ptr> [#uses=1]23 store double %add, ptr %arrayidx1024 %inc = add nsw i64 %j.0, 1 ; <i64> [#uses=1]25 br label %for.cond26 27for.end: ; preds = %for.cond28 ret void29}30 31; Should only end up with one phi.32; CHECK-LABEL: define void @test(33; CHECK-NEXT: entry:34; CHECK-NEXT: br label %for.body35; CHECK: for.body:36; CHECK-NEXT: %j.01 = phi i6437; CHECK-NOT: br38; CHECK: br i1 %cmp, label %for.body, label %for.end39; CHECK: for.end:40; CHECK-NEXT: ret void41