test/Transforms/Attributor/IPConstantProp/comdat-ipo.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM

; See PR26774

define i32 @baz() {
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT____-LABEL: define {{[^@]+}}@baz
; IS__TUNIT____-SAME: () #[[ATTR0:[0-9]+]] {
; IS__TUNIT____-NEXT:    ret i32 10
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@baz
; IS__CGSCC____-SAME: () #[[ATTR0:[0-9]+]] {
; IS__CGSCC____-NEXT:    ret i32 10
;
  ret i32 10
}

; We can const-prop @baz's return value *into* @foo, but cannot
; constprop @foo's return value into bar.

define linkonce_odr i32 @foo() {
; CHECK-LABEL: define {{[^@]+}}@foo() {
; CHECK-NEXT:    ret i32 10
;

  %val = call i32 @baz()
  ret i32 %val
}

define i32 @bar() {
; CHECK-LABEL: define {{[^@]+}}@bar() {
; CHECK-NEXT:    [[VAL:%.*]] = call i32 @foo()
; CHECK-NEXT:    ret i32 [[VAL]]
;

  %val = call i32 @foo()
  ret i32 %val
}
;.
; IS__TUNIT____: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
;.
; IS__CGSCC____: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
;.