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