1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=indvars -S | FileCheck %s 3 4target 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" 5 6; Make sure that we do not insert trunc in the loop. 7define i32 @test_01(ptr %p, double %x, ptr %np, ptr %mp, i32 %k) { 8; CHECK-LABEL: @test_01( 9; CHECK-NEXT: entry: 10; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[K:%.*]], i32 1) 11; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[SMAX]] to i64 12; CHECK-NEXT: br label [[LOOP:%.*]] 13; CHECK: loop: 14; CHECK-NEXT: [[IV_WIDE:%.*]] = phi i64 [ [[CANONICAL_IV_NEXT_I:%.*]], [[LOOP]] ], [ 0, [[ENTRY:%.*]] ] 15; CHECK-NEXT: [[CANONICAL_IV_NEXT_I]] = add nuw nsw i64 [[IV_WIDE]], 1 16; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds double, ptr [[P:%.*]], i64 [[IV_WIDE]] 17; CHECK-NEXT: [[LOAD:%.*]] = load atomic double, ptr [[GEP]] unordered, align 8 18; CHECK-NEXT: [[MUL:%.*]] = fmul double [[X:%.*]], [[LOAD]] 19; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds double, ptr [[P]], i64 [[IV_WIDE]] 20; CHECK-NEXT: store atomic double [[MUL]], ptr [[GEP2]] unordered, align 8 21; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[CANONICAL_IV_NEXT_I]], [[WIDE_TRIP_COUNT]] 22; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT:%.*]] 23; CHECK: exit: 24; CHECK-NEXT: ret i32 0 25; 26entry: 27 br label %loop 28 29loop: 30 %iv.wide = phi i64 [ %canonical.iv.next.i, %loop ], [ 0, %entry ] 31 %iv.narrow = phi i32 [ %iv.narrow.next, %loop ], [ 0, %entry ] 32 %canonical.iv.next.i = add nuw nsw i64 %iv.wide, 1 33 %zext = zext i32 %iv.narrow to i64 34 %gep = getelementptr inbounds double, ptr %p, i64 %zext 35 %load = load atomic double, ptr %gep unordered, align 8 36 %mul = fmul double %x, %load 37 %gep2 = getelementptr inbounds double, ptr %p, i64 %zext 38 store atomic double %mul, ptr %gep2 unordered, align 8 39 %iv.narrow.next = add nuw nsw i32 %iv.narrow, 1 40 %loop.cond = icmp slt i32 %iv.narrow.next, %k 41 br i1 %loop.cond, label %loop, label %exit 42 43exit: 44 ret i32 0 45} 46