1; REQUIRES: asserts 2; RUN: opt --passes=loop-vectorize --mtriple loongarch64-linux-gnu \ 3; RUN: --mattr=+lsx -debug-only=loop-vectorize --force-vector-width=1 \ 4; RUN: -S < %s 2>&1 | FileCheck %s --check-prefix=CHECK-SCALAR 5; RUN: opt --passes=loop-vectorize --mtriple loongarch64-linux-gnu \ 6; RUN: --mattr=+lsx -debug-only=loop-vectorize --force-vector-width=4 \ 7; RUN: -S < %s 2>&1 | FileCheck %s --check-prefix=CHECK-VECTOR 8 9define void @bar(ptr %A, i32 signext %n) { 10; CHECK-LABEL: bar 11; CHECK-SCALAR: LV(REG): Found max usage: 2 item 12; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 2 registers 13; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::FPRRC, 1 registers 14; CHECK-SCALAR-NEXT: LV(REG): Found invariant usage: 1 item 15; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 1 registers 16; CHECK-SCALAR-NEXT: LV: The target has 30 registers of LoongArch::GPRRC register class 17; CHECK-SCALAR-NEXT: LV: The target has 32 registers of LoongArch::FPRRC register class 18; CHECK-VECTOR: LV(REG): Found max usage: 1 item 19; CHECK-VECTOR-NEXT: LV(REG): RegisterClass: LoongArch::VRRC, 3 registers 20; CHECK-VECTOR-NEXT: LV(REG): Found invariant usage: 1 item 21; CHECK-VECTOR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 1 registers 22; CHECK-VECTOR-NEXT: LV: The target has 32 registers of LoongArch::VRRC register class 23 24entry: 25 %cmp4 = icmp sgt i32 %n, 0 26 br i1 %cmp4, label %for.body.preheader, label %for.cond.cleanup 27 28for.body.preheader: ; preds = %entry 29 %wide.trip.count = zext nneg i32 %n to i64 30 br label %for.body 31 32for.cond.cleanup: ; preds = %for.body, %entry 33 ret void 34 35for.body: ; preds = %for.body.preheader, %for.body 36 %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] 37 %0 = trunc i64 %indvars.iv to i32 38 %conv = sitofp i32 %0 to float 39 %arrayidx = getelementptr inbounds float, ptr %A, i64 %indvars.iv 40 store float %conv, ptr %arrayidx, align 4 41 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 42 %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count 43 br i1 %exitcond.not, label %for.cond.cleanup, label %for.body 44} 45