15b17d0a7c
InlineCost's isInlineViable() is changed to return InlineResult instead of bool. This provides messages for failure reasons and allows to get more specific messages for cases where callsites are not viable for inlining. Reviewed By: xbolva00, anemet Differential Revision: https://reviews.llvm.org/D57089 llvm-svn: 352849
62 lines
1.7 KiB
LLVM
62 lines
1.7 KiB
LLVM
; RUN: opt < %s -inline -inline-remark-attribute --inline-threshold=0 -S | FileCheck %s
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; Test that the inliner adds inline remark attributes to non-inlined callsites.
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declare void @ext();
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define void @foo() {
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call void @bar(i1 true)
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ret void
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}
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define void @bar(i1 %p) {
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br i1 %p, label %bb1, label %bb2
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bb1:
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call void @foo()
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call void @ext()
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ret void
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bb2:
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call void @bar(i1 true)
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ret void
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}
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;; Test 1 - Add different inline remarks to similar callsites.
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define void @test1() {
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; CHECK-LABEL: @test1
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; CHECK-NEXT: call void @bar(i1 true) [[ATTR1:#[0-9]+]]
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; CHECK-NEXT: call void @bar(i1 false) [[ATTR2:#[0-9]+]]
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call void @bar(i1 true)
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call void @bar(i1 false)
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ret void
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}
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define void @noop() {
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ret void
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}
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;; Test 2 - Printed InlineResult messages are followed by InlineCost.
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define void @test2(i8*) {
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; CHECK-LABEL: @test2
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; CHECK-NEXT: call void @noop() [[ATTR3:#[0-9]+]] [ "CUSTOM_OPERAND_BUNDLE"() ]
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; CHECK-NEXT: ret void
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call void @noop() ; extepected to be inlined
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call void @noop() [ "CUSTOM_OPERAND_BUNDLE"() ] ; cannot be inlined because of unsupported operand bundle
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ret void
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}
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;; Test 3 - InlineResult messages come from llvm::isInlineViable()
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define void @test3() {
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; CHECK-LABEL: @test3
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; CHECK-NEXT: call void @test3() [[ATTR4:#[0-9]+]]
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; CHECK-NEXT: ret void
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call void @test3() alwaysinline
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ret void
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}
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; CHECK: attributes [[ATTR1]] = { "inline-remark"="(cost=25, threshold=0)" }
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; CHECK: attributes [[ATTR2]] = { "inline-remark"="(cost=never): recursive" }
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; CHECK: attributes [[ATTR3]] = { "inline-remark"="unsupported operand bundle; (cost={{.*}}, threshold={{.*}})" }
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; CHECK: attributes [[ATTR4]] = { alwaysinline "inline-remark"="(cost=never): recursive call" }
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