64 lines
1.5 KiB
LLVM
64 lines
1.5 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt -passes="ipsccp<func-spec>,inline,instcombine,simplifycfg" -S \
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; RUN: -funcspec-min-function-size=23 -funcspec-max-iters=100 \
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; RUN: -debug-only=function-specialization < %s 2>&1 | FileCheck %s
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; Make sure the number of specializations created are not
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; linear to the number of iterations (funcspec-max-iters).
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; CHECK: FnSpecialization: Created 4 specializations in module
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@Global = internal constant i32 1, align 4
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define internal void @recursiveFunc(ptr readonly %arg) {
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%temp = alloca i32, align 4
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%arg.load = load i32, ptr %arg, align 4
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%arg.cmp = icmp slt i32 %arg.load, 10000
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br i1 %arg.cmp, label %loop1, label %ret.block
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loop1:
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br label %loop2
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loop2:
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br label %loop3
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loop3:
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br label %loop4
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loop4:
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br label %block6
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block6:
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call void @print_val(i32 %arg.load)
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%arg.add = add nsw i32 %arg.load, 1
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store i32 %arg.add, ptr %temp, align 4
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call void @recursiveFunc(ptr %temp)
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br label %loop4.end
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loop4.end:
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%exit_cond1 = call i1 @exit_cond()
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br i1 %exit_cond1, label %loop4, label %loop3.end
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loop3.end:
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%exit_cond2 = call i1 @exit_cond()
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br i1 %exit_cond2, label %loop3, label %loop2.end
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loop2.end:
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%exit_cond3 = call i1 @exit_cond()
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br i1 %exit_cond3, label %loop2, label %loop1.end
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loop1.end:
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%exit_cond4 = call i1 @exit_cond()
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br i1 %exit_cond4, label %loop1, label %ret.block
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ret.block:
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ret void
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}
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define i32 @main() {
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call void @recursiveFunc(ptr @Global)
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ret i32 0
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}
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declare dso_local void @print_val(i32)
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declare dso_local i1 @exit_cond()
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