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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=indvars -S < %s | FileCheck %s
declare void @c(ptr)
define void @test(ptr %arg) {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[O:%.*]] = getelementptr ptr, ptr [[ARG:%.*]], i64 16
; CHECK-NEXT: call void @c(ptr [[O]])
; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[ARG]], i64 16
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[IDX:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[IDX]], 1
; CHECK-NEXT: [[C:%.*]] = icmp ne i32 [[INC]], 16
; CHECK-NEXT: call void @c(ptr [[UGLYGEP]])
; CHECK-NEXT: br i1 [[C]], label [[LOOP]], label [[END:%.*]]
; CHECK: end:
; CHECK-NEXT: ret void
;
entry:
%o = getelementptr ptr, ptr %arg, i64 16
call void @c(ptr %o)
br label %loop
loop:
%idx = phi i32 [ 1, %entry ], [ %inc, %loop ]
%inc = add i32 %idx, 1
%c = icmp ne i32 %inc, 16
%p = getelementptr ptr, ptr %arg, i32 2
%p1 = getelementptr ptr, ptr %p, i32 %idx
%neg = sub i32 0, %idx
%p2 = getelementptr ptr, ptr %p1, i32 %neg
call void @c(ptr %p2)
br i1 %c, label %loop, label %end
end:
ret void
}
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