55 lines
1.8 KiB
LLVM
55 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
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; RUN: opt < %s -loop-reduce -S | FileCheck %s
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; Provide legal integer types.
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target datalayout = "n8:16:32:64"
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@d = common global i32 0, align 4
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define void @fn2(i32 %x) nounwind uwtable {
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; CHECK-LABEL: define void @fn2(
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; CHECK-SAME: i32 [[X:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_COND:%.*]]
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; CHECK: for.cond:
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; CHECK-NEXT: [[LSR_IV:%.*]] = phi i32 [ [[LSR_IV_NEXT:%.*]], [[FOR_COND]] ], [ -1, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[X]], 0
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; CHECK-NEXT: [[LSR_IV_NEXT]] = add i32 [[LSR_IV]], 1
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; CHECK-NEXT: br i1 [[TOBOOL]], label [[FOR_COND]], label [[FOR_END:%.*]]
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; CHECK: for.end:
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; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr @d, align 4
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; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr @d, align 4
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; CHECK-NEXT: [[TMP0:%.*]] = sub i32 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: [[TOBOOL26:%.*]] = icmp eq i32 [[X]], 0
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; CHECK-NEXT: br i1 [[TOBOOL26]], label [[FOR_END5:%.*]], label [[FOR_BODY_LR_PH:%.*]]
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; CHECK: for.body.lr.ph:
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; CHECK-NEXT: [[TOBOOL3:%.*]] = icmp ne i32 [[TMP0]], [[LSR_IV_NEXT]]
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; CHECK-NEXT: br label [[FOR_END5]]
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; CHECK: for.end5:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.cond
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for.cond:
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%g.0 = phi i32 [ 0, %entry ], [ %dec, %for.cond ]
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%tobool = icmp eq i32 %x, 0
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%dec = add nsw i32 %g.0, -1
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br i1 %tobool, label %for.cond, label %for.end
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for.end:
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%tmp1 = load i32, ptr @d, align 4
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%add = add nsw i32 %tmp1, %g.0
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%tmp2 = load i32, ptr @d, align 4
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%tobool26 = icmp eq i32 %x, 0
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br i1 %tobool26, label %for.end5, label %for.body.lr.ph
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for.body.lr.ph:
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%tobool3 = icmp ne i32 %tmp2, %add
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br label %for.end5
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for.end5:
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ret void
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}
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