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; RUN: opt -passes="ipsccp<func-spec>" -force-function-specialization -func-specialization-max-iters=2 -S < %s | FileCheck %s
; Volatile store preventing recursive specialisation:
;
; CHECK: @recursiveFunc.1
; CHECK-NOT: @recursiveFunc.2
@Global = internal constant i32 1, align 4
define internal void @recursiveFunc(ptr nocapture readonly %arg) {
%temp = alloca i32, align 4
%arg.load = load i32, ptr %arg, align 4
%arg.cmp = icmp slt i32 %arg.load, 4
br i1 %arg.cmp, label %block6, label %ret.block
block6:
call void @print_val(i32 %arg.load)
%arg.add = add nsw i32 %arg.load, 1
store volatile i32 %arg.add, ptr %temp, align 4
call void @recursiveFunc(ptr nonnull %temp)
br label %ret.block
ret.block:
ret void
}
define i32 @main() {
call void @recursiveFunc(ptr nonnull @Global)
ret i32 0
}
declare dso_local void @print_val(i32)
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