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[FunctionAttrs] Annotate "willreturn" for intrinsics

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Summary:
In D62801, new function attribute `willreturn` was introduced. In short, a function with `willreturn` is guaranteed to come back to the call site(more precise definition is in LangRef).

In this patch, willreturn is annotated for LLVM intrinsics.

Reviewers: jdoerfert

Reviewed By: jdoerfert

Subscribers: jvesely, nhaehnle, sstefan1, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64904

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@367184 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hideto Ueno
2019-07-28 06:09:56 +00:00
parent c64f519ea0
commit 204c769d62
27 changed files with 207 additions and 215 deletions
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test/Bitcode/compatibility-6.0.ll
+12 -11
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@@ -1259,10 +1259,10 @@ exit:
; CHECK: select <2 x i1> <i1 true, i1 false>, <2 x i8> <i8 2, i8 3>, <2 x i8> <i8 3, i8 2>
call void @f.nobuiltin() builtin
; CHECK: call void @f.nobuiltin() #42
; CHECK: call void @f.nobuiltin() #43
call void @f.strictfp() strictfp
; CHECK: call void @f.strictfp() #43
; CHECK: call void @f.strictfp() #44
call fastcc noalias i32* @f.noalias() noinline
; CHECK: call fastcc noalias i32* @f.noalias() #12
@@ -1627,10 +1627,10 @@ normal:
declare void @f.writeonly() writeonly
; CHECK: declare void @f.writeonly() #39
; CHECK: declare void @f.writeonly() #40
declare void @f.speculatable() speculatable
; CHECK: declare void @f.speculatable() #40
; CHECK: declare void @f.speculatable() #41
;; Constant Expressions
@@ -1674,15 +1674,16 @@ define i8** @constexpr() {
; CHECK: attributes #32 = { norecurse }
; CHECK: attributes #33 = { inaccessiblememonly }
; CHECK: attributes #34 = { inaccessiblemem_or_argmemonly }
; CHECK: attributes #35 = { nounwind readnone }
; CHECK: attributes #35 = { nounwind readnone willreturn }
; CHECK: attributes #36 = { argmemonly nounwind readonly }
; CHECK: attributes #37 = { argmemonly nounwind }
; CHECK: attributes #38 = { nounwind readonly }
; CHECK: attributes #39 = { writeonly }
; CHECK: attributes #40 = { speculatable }
; CHECK: attributes #41 = { inaccessiblemem_or_argmemonly nounwind }
; CHECK: attributes #42 = { builtin }
; CHECK: attributes #43 = { strictfp }
; CHECK: attributes #38 = { nounwind readnone }
; CHECK: attributes #39 = { nounwind readonly }
; CHECK: attributes #40 = { writeonly }
; CHECK: attributes #41 = { speculatable }
; CHECK: attributes #42 = { inaccessiblemem_or_argmemonly nounwind willreturn }
; CHECK: attributes #43 = { builtin }
; CHECK: attributes #44 = { strictfp }
;; Metadata