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llvm-mirror/test/Bitcode/upgrade-frame-pointer.ll
Fangrui Song 656e96f90c Ignore "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" in favor of "frame-pointer"
D56351 (included in LLVM 8.0.0) introduced "frame-pointer".  All tests
which use "no-frame-pointer-elim" or "no-frame-pointer-elim-non-leaf"
have been migrated to use "frame-pointer".

Implement UpgradeFramePointerAttributes to upgrade the two obsoleted
function attributes for bitcode. Their semantics are ignored.

Differential Revision: https://reviews.llvm.org/D71863
2019-12-30 09:46:19 -08:00

34 lines
1.4 KiB
LLVM

;; Test that function attributes "no-frame-pointer-elim" ("true" or "false") and
;; "no-frame-pointer-elim-non-leaf" (value is ignored) can be upgraded to
;; "frame-pointer".
; RUN: llvm-as %s -o - | llvm-dis - | FileCheck %s
; CHECK: define void @all0() #0
define void @all0() "no-frame-pointer-elim"="true" { ret void }
; CHECK: define void @all1() #1
define void @all1() #0 { ret void }
; CHECK: define void @non_leaf0() #2
define void @non_leaf0() "no-frame-pointer-elim-non-leaf" { ret void }
; CHECK: define void @non_leaf1() #3
define void @non_leaf1() #1 { ret void }
; CHECK: define void @none() #4
define void @none() "no-frame-pointer-elim"="false" { ret void }
;; Don't add "frame-pointer" if neither "no-frame-pointer-elim" nor
;; "no-frame-pointer-elim-non-leaf" is present.
; CHECK: define void @no_attr() {
define void @no_attr() { ret void }
attributes #0 = { readnone "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" }
attributes #1 = { readnone "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf" }
;; Other attributes (e.g. readnone) are unaffected.
; CHECK: attributes #0 = { "frame-pointer"="all" }
; CHECK: attributes #1 = { readnone "frame-pointer"="all" }
; CHECK: attributes #2 = { "frame-pointer"="non-leaf" }
; CHECK: attributes #3 = { readnone "frame-pointer"="non-leaf" }
; CHECK: attributes #4 = { "frame-pointer"="none" }