7ef8f9c972
Add `nooutline` + update LangRef to say it exists. This makes it possible to say "don't outline from this function ever." We want to be able to toggle whether or not a function should be in the search set regardless of default behaviour. Add testcases for the IR Outliner + Machine Outliner. Also remove an unnecessary check for an empty function in the Machine Outliner. Differential Revision: https://reviews.llvm.org/D140438
31 lines
1.0 KiB
LLVM
31 lines
1.0 KiB
LLVM
; RUN: opt -S -debug-only=iroutliner -p=iroutliner -ir-outlining-no-cost %s -o - 2>&1 | FileCheck %s
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; REQUIRES: asserts
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; CHECK-NOT: ... Skipping function with nooutline attribute: outlinable
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; CHECK-NOT: @outlined_ir_func
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; CHECK: ... Skipping function with nooutline attribute: nooutline1
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; CHECK: ... Skipping function with nooutline attribute: nooutline2
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define void @outlinable() { ret void }
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define i8 @nooutline1(ptr noalias %s, ptr noalias %d, i64 %len) "nooutline" {
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%a = load i8, ptr %s
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%b = load i8, ptr %d
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call void @llvm.memcpy.p0i8.p0i8.i64(ptr %d, ptr %s, i64 %len, i1 false)
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%c = add i8 %a, %b
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%ret = load i8, ptr %s
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ret i8 %ret
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}
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define i8 @nooutline2(ptr noalias %s, ptr noalias %d, i64 %len) "nooutline" {
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%a = load i8, ptr %s
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%b = load i8, ptr %d
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call void @llvm.memcpy.p0i8.p0i8.i64(ptr %d, ptr %s, i64 %len, i1 false)
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%c = add i8 %a, %b
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%ret = load i8, ptr %s
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ret i8 %ret
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1)
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