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; RUN: opt < %s -ipsccp -S | FileCheck %s
;;======================== test1
define internal i32 @test1a(i32 %A) {
%X = add i32 1, 2
ret i32 %A
}
; CHECK: define internal i32 @test1a
; CHECK: ret i32 undef
define i32 @test1b() {
%X = call i32 @test1a( i32 17 )
ret i32 %X
; CHECK: define i32 @test1b
; CHECK: ret i32 17
}
;;======================== test2
define internal i32 @test2a(i32 %A) {
%C = icmp eq i32 %A, 0
br i1 %C, label %T, label %F
T:
%B = call i32 @test2a( i32 0 )
ret i32 0
F:
%C.upgrd.1 = call i32 @test2a(i32 1)
ret i32 %C.upgrd.1
}
; CHECK: define internal i32 @test2a
; CHECK-NEXT: br label %T
; CHECK: ret i32 undef
define i32 @test2b() {
%X = call i32 @test2a(i32 0)
ret i32 %X
}
; CHECK: define i32 @test2b
; CHECK-NEXT: %X = call i32 @test2a(i32 0)
; CHECK-NEXT: ret i32 0
;;======================== test3
@G = internal global i32 undef
define void @test3a() {
%X = load i32* @G
store i32 %X, i32* @G
ret void
}
; CHECK: define void @test3a
; CHECK-NEXT: ret void
define i32 @test3b() {
%V = load i32* @G
%C = icmp eq i32 %V, 17
br i1 %C, label %T, label %F
T:
store i32 17, i32* @G
ret i32 %V
F:
store i32 123, i32* @G
ret i32 0
}
; CHECK: define i32 @test3b
; CHECK-NOT: store
; CHECK: ret i32 0
;;======================== test4
define internal {i64,i64} @test4a() {
%a = insertvalue {i64,i64} undef, i64 4, 1
%b = insertvalue {i64,i64} %a, i64 5, 0
ret {i64,i64} %b
}
define i64 @test4b() {
%a = invoke {i64,i64} @test4a()
to label %A unwind label %B
A:
%b = extractvalue {i64,i64} %a, 0
%c = call i64 @test4c(i64 %b)
ret i64 %c
B:
%val = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
catch i8* null
ret i64 0
}
; CHECK: define i64 @test4b()
; CHECK: %c = call i64 @test4c(i64 5)
; CHECK-NEXT: ret i64 5
define internal i64 @test4c(i64 %a) {
ret i64 %a
}
; CHECK: define internal i64 @test4c
; CHECK: ret i64 undef
;;======================== test5
; PR4313
define internal {i64,i64} @test5a() {
%a = insertvalue {i64,i64} undef, i64 4, 1
%b = insertvalue {i64,i64} %a, i64 5, 0
ret {i64,i64} %b
}
define i64 @test5b() {
%a = invoke {i64,i64} @test5a()
to label %A unwind label %B
A:
%c = call i64 @test5c({i64,i64} %a)
ret i64 %c
B:
%val = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
catch i8* null
ret i64 0
}
; CHECK: define i64 @test5b()
; CHECK: A:
; CHECK-NEXT: %c = call i64 @test5c({ i64, i64 } %a)
; CHECK-NEXT: ret i64 5
define internal i64 @test5c({i64,i64} %a) {
%b = extractvalue {i64,i64} %a, 0
ret i64 %b
}
;;======================== test6
define i64 @test6a() {
ret i64 0
}
define i64 @test6b() {
%a = call i64 @test6a()
ret i64 %a
}
; CHECK: define i64 @test6b
; CHECK: ret i64 0
;;======================== test7
%T = type {i32,i32}
define internal %T @test7a(i32 %A) {
%X = add i32 1, %A
%mrv0 = insertvalue %T undef, i32 %X, 0
%mrv1 = insertvalue %T %mrv0, i32 %A, 1
ret %T %mrv1
; CHECK: @test7a
; CHECK-NEXT: %mrv0 = insertvalue %T undef, i32 18, 0
; CHECK-NEXT: %mrv1 = insertvalue %T %mrv0, i32 17, 1
}
define i32 @test7b() {
%X = call %T @test7a(i32 17)
%Y = extractvalue %T %X, 0
%Z = add i32 %Y, %Y
ret i32 %Z
; CHECK: define i32 @test7b
; CHECK-NEXT: call %T @test7a(i32 17)
; CHECK-NEXT: ret i32 36
}
;;======================== test8
define internal {} @test8a(i32 %A, i32* %P) {
store i32 %A, i32* %P
ret {} {}
; CHECK: @test8a
; CHECK-NEXT: store i32 5,
; CHECK-NEXT: ret
}
define void @test8b(i32* %P) {
%X = call {} @test8a(i32 5, i32* %P)
ret void
; CHECK: define void @test8b
; CHECK-NEXT: call {} @test8a
; CHECK-NEXT: ret void
}
;;======================== test9
@test9g = internal global { } zeroinitializer
define void @test9() {
entry:
%local_foo = alloca { }
load { }* @test9g
store { } %0, { }* %local_foo
ret void
}
declare i32 @__gxx_personality_v0(...)
;;======================== test10
define i32 @test10a() nounwind {
entry:
%call = call i32 @test10b(i32 undef)
ret i32 %call
; CHECK: define i32 @test10a
; CHECK: ret i32 0
}
define internal i32 @test10b(i32 %x) nounwind {
entry:
%r = and i32 %x, 1
ret i32 %r
; CHECK: define internal i32 @test10b
; CHECK: ret i32 undef
}
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