2556f58148
It would waste time to specialize a function which would inline finally. This patch did two things: - Don't specialize functions which are always-inline. - Don't spescialize functions whose lines of code are less than threshold (100 by default). For spec2017int, this patch could reduce the number of specialized functions by 33%. Then the compile time didn't increase for every benchmark. Reviewed By: SjoerdMeijer, xbolva00, snehasish Differential Revision: https://reviews.llvm.org/D107897
44 lines
1.0 KiB
LLVM
44 lines
1.0 KiB
LLVM
; RUN: opt -function-specialization -function-specialization-for-literal-constant=true -func-specialization-size-threshold=10 -S < %s | FileCheck %s
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; Check that the literal constant parameter could be specialized.
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; CHECK: @foo.1(
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; CHECK: @foo.2(
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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declare i32 @getValue()
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declare i1 @getCond()
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define internal i32 @foo(i1 %break_cond) {
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entry:
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br label %loop.entry
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loop.entry:
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br label %loop2.entry
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loop2.entry:
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br label %loop2.body
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loop2.body:
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%value = call i32 @getValue()
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br i1 %break_cond, label %loop2.end, label %return
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loop2.end:
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%cond.end = call i1 @getCond()
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br i1 %cond.end, label %loop2.entry, label %loop.end
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loop.end:
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%cond2.end = call i1 @getCond()
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br i1 %cond2.end, label %loop.entry, label %return
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return:
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ret i32 %value
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}
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define dso_local i32 @bar(i32 %x, i32 %y) {
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entry:
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%retval.1 = call i32 @foo(i1 1)
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%retval.2 = call i32 @foo(i1 0)
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%retval = add nsw i32 %retval.1, %retval.2
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ret i32 %retval
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} |