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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1-m.main-none-eabi -mcpu=cortex-m55 -O3 < %s | FileCheck %s
define i32 @loop(ptr nocapture readonly %x) {
; CHECK-LABEL: loop:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r7, lr}
; CHECK-NEXT: push {r7, lr}
; CHECK-NEXT: mov.w lr, #500
; CHECK-NEXT: mov r1, r0
; CHECK-NEXT: movs r0, #0
; CHECK-NEXT: .p2align 2
; CHECK-NEXT: .LBB0_1: @ %for.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: ldr r2, [r1], #4
; CHECK-NEXT: add r0, r2
; CHECK-NEXT: le lr, .LBB0_1
; CHECK-NEXT: @ %bb.2: @ %for.cond.cleanup
; CHECK-NEXT: pop {r7, pc}
entry:
br label %for.body
for.cond.cleanup: ; preds = %for.body
ret i32 %add
for.body: ; preds = %entry, %for.body
%i.07 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%s.06 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds i32, ptr %x, i32 %i.07
%0 = load i32, ptr %arrayidx, align 4
%add = add nsw i32 %0, %s.06
%inc = add nuw nsw i32 %i.07, 1
%exitcond.not = icmp eq i32 %inc, 500
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
define i64 @loopif(ptr nocapture readonly %x, i32 %y, i32 %n) {
; CHECK-LABEL: loopif:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r7, lr}
; CHECK-NEXT: push {r7, lr}
; CHECK-NEXT: cmp r2, #1
; CHECK-NEXT: blt .LBB1_4
; CHECK-NEXT: @ %bb.1: @ %for.body.lr.ph
; CHECK-NEXT: mov lr, r2
; CHECK-NEXT: mov r12, r0
; CHECK-NEXT: dls lr, r2
; CHECK-NEXT: movs r0, #0
; CHECK-NEXT: movs r3, #0
; CHECK-NEXT: .p2align 2
; CHECK-NEXT: .LBB1_2: @ %for.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: ldr r2, [r12], #4
; CHECK-NEXT: smlal r0, r3, r2, r1
; CHECK-NEXT: le lr, .LBB1_2
; CHECK-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT: mov r1, r3
; CHECK-NEXT: pop {r7, pc}
; CHECK-NEXT: .p2align 2
; CHECK-NEXT: .LBB1_4:
; CHECK-NEXT: movs r0, #0
; CHECK-NEXT: movs r3, #0
; CHECK-NEXT: mov r1, r3
; CHECK-NEXT: pop {r7, pc}
entry:
%cmp7 = icmp sgt i32 %n, 0
br i1 %cmp7, label %for.body.lr.ph, label %for.cond.cleanup
for.body.lr.ph: ; preds = %entry
%conv1 = sext i32 %y to i64
br label %for.body
for.cond.cleanup: ; preds = %for.body, %entry
%s.0.lcssa = phi i64 [ 0, %entry ], [ %add, %for.body ]
ret i64 %s.0.lcssa
for.body: ; preds = %for.body.lr.ph, %for.body
%i.09 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
%s.08 = phi i64 [ 0, %for.body.lr.ph ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds i32, ptr %x, i32 %i.09
%0 = load i32, ptr %arrayidx, align 4
%conv = sext i32 %0 to i64
%mul = mul nsw i64 %conv, %conv1
%add = add nsw i64 %mul, %s.08
%inc = add nuw nsw i32 %i.09, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
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