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1; RUN: opt < %s -loop-reduce -S | FileCheck %s2;3; Test LSR's ability to prune formulae that refer to nonexistent4; AddRecs in other loops.5;6; Unable to reduce this case further because it requires LSR to exceed7; ComplexityLimit.8;9; We really just want to ensure that LSR can process this loop without10; finding an unsatisfactory solution and bailing out. I've added11; dummyout, an obvious candidate for postinc replacement so we can12; verify that LSR removes it.13 14target 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-S128"15target triple = "x86_64-apple-darwin"16 17; CHECK-LABEL: @test(18; CHECK: for.body:19; CHECK: %lsr.iv20; CHECK-NOT: %dummyout21; CHECK: ret22define i64 @test(i64 %count, ptr nocapture %srcrow, ptr nocapture %destrow) nounwind uwtable ssp {23entry:24 %cmp34 = icmp eq i64 %count, 025 br i1 %cmp34, label %for.end29, label %for.body26 27for.body: ; preds = %entry, %for.body28 %dummyiv = phi i64 [ %dummycnt, %for.body ], [ 0, %entry ]29 %indvars.iv39 = phi i64 [ %indvars.iv.next40, %for.body ], [ 0, %entry ]30 %dp.036 = phi ptr [ %add.ptr, %for.body ], [ %destrow, %entry ]31 %p.035 = phi ptr [ %incdec.ptr4, %for.body ], [ %srcrow, %entry ]32 %incdec.ptr = getelementptr inbounds float, ptr %p.035, i64 133 %0 = load float, ptr %incdec.ptr, align 434 %incdec.ptr2 = getelementptr inbounds float, ptr %p.035, i64 235 %1 = load float, ptr %incdec.ptr2, align 436 %incdec.ptr3 = getelementptr inbounds float, ptr %p.035, i64 337 %2 = load float, ptr %incdec.ptr3, align 438 %incdec.ptr4 = getelementptr inbounds float, ptr %p.035, i64 439 %3 = load float, ptr %incdec.ptr4, align 440 %4 = load i32, ptr %dp.036, align 441 %conv5 = fptoui float %0 to i3242 %or = or i32 %4, %conv543 %arrayidx6 = getelementptr inbounds i32, ptr %dp.036, i64 144 %5 = load i32, ptr %arrayidx6, align 445 %conv7 = fptoui float %1 to i3246 %or8 = or i32 %5, %conv747 %arrayidx9 = getelementptr inbounds i32, ptr %dp.036, i64 248 %6 = load i32, ptr %arrayidx9, align 449 %conv10 = fptoui float %2 to i3250 %or11 = or i32 %6, %conv1051 %arrayidx12 = getelementptr inbounds i32, ptr %dp.036, i64 352 %7 = load i32, ptr %arrayidx12, align 453 %conv13 = fptoui float %3 to i3254 %or14 = or i32 %7, %conv1355 store i32 %or, ptr %dp.036, align 456 store i32 %or8, ptr %arrayidx6, align 457 store i32 %or11, ptr %arrayidx9, align 458 store i32 %or14, ptr %arrayidx12, align 459 %add.ptr = getelementptr inbounds i32, ptr %dp.036, i64 460 %indvars.iv.next40 = add i64 %indvars.iv39, 461 %dummycnt = add i64 %dummyiv, 162 %cmp = icmp ult i64 %indvars.iv.next40, %count63 br i1 %cmp, label %for.body, label %for.cond19.preheader64 65for.cond19.preheader: ; preds = %for.body66 %dummyout = add i64 %dummyiv, 167 %rem = and i64 %count, 368 %cmp2130 = icmp eq i64 %rem, 069 br i1 %cmp2130, label %for.end29, label %for.body23.lr.ph70 71for.body23.lr.ph: ; preds = %for.cond19.preheader72 %8 = and i64 %count, 373 br label %for.body2374 75for.body23: ; preds = %for.body23, %for.body23.lr.ph76 %indvars.iv = phi i64 [ 0, %for.body23.lr.ph ], [ %indvars.iv.next, %for.body23 ]77 %dp.132 = phi ptr [ %add.ptr, %for.body23.lr.ph ], [ %incdec.ptr28, %for.body23 ]78 %p.131 = phi ptr [ %incdec.ptr4, %for.body23.lr.ph ], [ %incdec.ptr24, %for.body23 ]79 %incdec.ptr24 = getelementptr inbounds float, ptr %p.131, i64 180 %9 = load float, ptr %incdec.ptr24, align 481 %10 = load i32, ptr %dp.132, align 482 %conv25 = fptoui float %9 to i3283 %or26 = or i32 %10, %conv2584 store i32 %or26, ptr %dp.132, align 485 %indvars.iv.next = add i64 %indvars.iv, 186 %incdec.ptr28 = getelementptr inbounds i32, ptr %dp.132, i64 187 %exitcond = icmp eq i64 %indvars.iv.next, %888 br i1 %exitcond, label %for.end29, label %for.body2389 90for.end29: ; preds = %entry, %for.body23, %for.cond19.preheader91 %result = phi i64 [ 0, %entry ], [ %dummyout, %for.body23 ], [ %dummyout, %for.cond19.preheader ]92 ret i64 %result93}94