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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='loop(indvars,loop-deletion,loop-unroll-full),verify<scalar-evolution>' -S %s | FileCheck %s
define void @test(i1 %c.0, ptr %A) {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C_0:%.*]], label [[LOOP_1_HEADER_PREHEADER:%.*]], label [[OUTER_HEADER_PREHEADER:%.*]]
; CHECK: outer.header.preheader:
; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
; CHECK: loop.1.header.preheader:
; CHECK-NEXT: br label [[LOOP_1_HEADER:%.*]]
; CHECK: loop.1.header:
; CHECK-NEXT: store i32 0, ptr [[A:%.*]], align 4
; CHECK-NEXT: br label [[LOOP_1_LATCH:%.*]]
; CHECK: loop.1.latch:
; CHECK-NEXT: store i32 0, ptr [[A]], align 4
; CHECK-NEXT: br label [[LOOP_1_LATCH_1:%.*]]
; CHECK: loop.1.latch.1:
; CHECK-NEXT: ret void
; CHECK: outer.header.loopexit:
; CHECK-NEXT: br label [[OUTER_HEADER]]
; CHECK: outer.header:
; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[A]], align 4
; CHECK-NEXT: br label [[OUTER_HEADER_LOOPEXIT:%.*]]
;
entry:
br i1 %c.0, label %loop.1.header, label %outer.header
loop.1.header:
%iv.1 = phi i32 [ 0, %entry ], [ 1, %loop.1.latch ]
store i32 0, ptr %A, align 4
br label %loop.1.latch
loop.1.latch:
%cmp.1 = icmp eq i32 %iv.1, 0
br i1 %cmp.1, label %loop.1.header, label %exit
outer.header:
%l = load i32, ptr %A, align 4
br label %inner.header
inner.header:
%iv.2 = phi i32 [ 0, %outer.header ], [ %iv.2.next, %inner.outer.latch ]
%cmp.2 = icmp eq i32 %iv.2, %l
br i1 %cmp.2, label %inner.outer.latch, label %inner.outer.latch
inner.outer.latch:
%iv.2.next = add nuw nsw i32 %iv.2, 1
br i1 false, label %inner.header, label %outer.header
exit:
ret void
}
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