53 lines
2.0 KiB
LLVM
53 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=aarch64-unknown-unknown | FileCheck %s
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target datalayout = "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128"
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; we need to generate post index load for this case
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define i32 @test(i32 %c, ptr %a, ptr %b) {
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; CHECK-LABEL: test:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: cmp w0, #1
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; CHECK-NEXT: b.lt .LBB0_4
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; CHECK-NEXT: // %bb.1: // %for.body.preheader
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; CHECK-NEXT: mov w8, w0
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; CHECK-NEXT: .LBB0_2: // %for.body
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr w9, [x1]
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; CHECK-NEXT: cbnz w9, .LBB0_5
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; CHECK-NEXT: // %bb.3: // %for.cond
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; CHECK-NEXT: // in Loop: Header=BB0_2 Depth=1
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; CHECK-NEXT: add x1, x1, #4
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; CHECK-NEXT: subs x8, x8, #1
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; CHECK-NEXT: b.ne .LBB0_2
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; CHECK-NEXT: .LBB0_4:
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; CHECK-NEXT: mov w0, wzr
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; CHECK-NEXT: ret
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; CHECK-NEXT: .LBB0_5:
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; CHECK-NEXT: mov w0, #1
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; CHECK-NEXT: ret
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entry:
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%cmp13 = icmp sgt i32 %c, 0
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br i1 %cmp13, label %for.body.preheader, label %return
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for.body.preheader: ; preds = %entry
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%wide.trip.count = zext i32 %c to i64
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br label %for.body
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for.cond: ; preds = %for.body
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
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br i1 %exitcond.not, label %return, label %for.body
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for.body: ; preds = %for.body.preheader, %for.cond
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%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.cond ]
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%arrayidx = getelementptr inbounds i32, ptr %a, i64 %indvars.iv
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%val = load i32, ptr %arrayidx, align 4
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%tobool3.not = icmp eq i32 %val, 0
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br i1 %tobool3.not, label %for.cond, label %return
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return: ; preds = %for.cond, %for.body, %entry
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%retval.1 = phi i32 [ 0, %entry ], [ 0, %for.cond ], [ 1, %for.body ]
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ret i32 %retval.1
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}
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