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; REQUIRES: asserts
; RUN: opt --passes=loop-vectorize --mtriple loongarch64-linux-gnu \
; RUN: --mattr=+lsx -debug-only=loop-vectorize --force-vector-width=1 \
; RUN: -S < %s 2>&1 | FileCheck %s --check-prefix=CHECK-SCALAR
; RUN: opt --passes=loop-vectorize --mtriple loongarch64-linux-gnu \
; RUN: --mattr=+lsx -debug-only=loop-vectorize --force-vector-width=4 \
; RUN: -S < %s 2>&1 | FileCheck %s --check-prefix=CHECK-VECTOR
define void @bar(ptr %A, i32 signext %n) {
; CHECK-LABEL: bar
; CHECK-SCALAR: LV(REG): Found max usage: 2 item
; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 2 registers
; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::FPRRC, 1 registers
; CHECK-SCALAR-NEXT: LV(REG): Found invariant usage: 1 item
; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 1 registers
; CHECK-SCALAR-NEXT: LV: The target has 30 registers of LoongArch::GPRRC register class
; CHECK-SCALAR-NEXT: LV: The target has 32 registers of LoongArch::FPRRC register class
; CHECK-VECTOR: LV(REG): Found max usage: 1 item
; CHECK-VECTOR-NEXT: LV(REG): RegisterClass: LoongArch::VRRC, 3 registers
; CHECK-VECTOR-NEXT: LV(REG): Found invariant usage: 1 item
; CHECK-VECTOR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 1 registers
; CHECK-VECTOR-NEXT: LV: The target has 32 registers of LoongArch::VRRC register class
entry:
%cmp4 = icmp sgt i32 %n, 0
br i1 %cmp4, label %for.body.preheader, label %for.cond.cleanup
for.body.preheader: ; preds = %entry
%wide.trip.count = zext nneg i32 %n to i64
br label %for.body
for.cond.cleanup: ; preds = %for.body, %entry
ret void
for.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
%0 = trunc i64 %indvars.iv to i32
%conv = sitofp i32 %0 to float
%arrayidx = getelementptr inbounds float, ptr %A, i64 %indvars.iv
store float %conv, ptr %arrayidx, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
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