test/Transforms/Attributor/IPConstantProp/return-constant.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

; FIXME: icmp folding is missing

define i1 @invokecaller(i1 %C) personality i32 (...)* @__gxx_personality_v0 {
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT____-LABEL: define {{[^@]+}}@invokecaller
; IS__TUNIT____-SAME: (i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 {
; IS__TUNIT____-NEXT:    [[X:%.*]] = call i32 @foo(i1 [[C]]) #[[ATTR1:[0-9]+]]
; IS__TUNIT____-NEXT:    br label [[OK:%.*]]
; IS__TUNIT____:       OK:
; IS__TUNIT____-NEXT:    ret i1 true
; IS__TUNIT____:       FAIL:
; IS__TUNIT____-NEXT:    unreachable
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@invokecaller
; IS__CGSCC____-SAME: (i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] personality i32 (...)* @__gxx_personality_v0 {
; IS__CGSCC____-NEXT:    [[X:%.*]] = call i32 @foo(i1 [[C]]) #[[ATTR1:[0-9]+]]
; IS__CGSCC____-NEXT:    br label [[OK:%.*]]
; IS__CGSCC____:       OK:
; IS__CGSCC____-NEXT:    ret i1 true
; IS__CGSCC____:       FAIL:
; IS__CGSCC____-NEXT:    unreachable
;
  %X = invoke i32 @foo( i1 %C ) to label %OK unwind label %FAIL             ; <i32> [#uses=1]
OK:
  %Y = icmp ne i32 %X, 0          ; <i1> [#uses=1]
  ret i1 %Y
FAIL:
  %exn = landingpad {i8*, i32}
  cleanup
  ret i1 false
}

define internal i32 @foo(i1 %C) {
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT____-LABEL: define {{[^@]+}}@foo
; IS__TUNIT____-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; IS__TUNIT____:       T:
; IS__TUNIT____-NEXT:    ret i32 undef
; IS__TUNIT____:       F:
; IS__TUNIT____-NEXT:    ret i32 undef
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@foo
; IS__CGSCC____-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; IS__CGSCC____:       T:
; IS__CGSCC____-NEXT:    ret i32 undef
; IS__CGSCC____:       F:
; IS__CGSCC____-NEXT:    ret i32 undef
;
  br i1 %C, label %T, label %F

T:              ; preds = %0
  ret i32 52

F:              ; preds = %0
  ret i32 52
}

define i1 @caller(i1 %C) {
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT____-LABEL: define {{[^@]+}}@caller
; IS__TUNIT____-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
; IS__TUNIT____-NEXT:    ret i1 true
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@caller
; IS__CGSCC____-SAME: (i1 [[C:%.*]]) #[[ATTR0]] {
; IS__CGSCC____-NEXT:    ret i1 true
;
  %X = call i32 @foo( i1 %C )             ; <i32> [#uses=1]
  %Y = icmp ne i32 %X, 0          ; <i1> [#uses=1]
  ret i1 %Y
}

declare i32 @__gxx_personality_v0(...)
;.
; IS__TUNIT____: attributes #[[ATTR0]] = { nofree nosync nounwind readnone willreturn }
; IS__TUNIT____: attributes #[[ATTR1]] = { nounwind readnone }
;.
; IS__CGSCC____: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind readnone willreturn }
; IS__CGSCC____: attributes #[[ATTR1]] = { nounwind readnone }
;.