-; RUN: llvm-upgrade < %s | llvm-as | opt -ipsccp | llvm-dis | grep -v 'ret int 17' | grep -v 'ret int undef' | not grep ret
+; RUN: opt < %s -ipsccp -S | FileCheck %s
-implementation
+;;======================== test1
-internal int %bar(int %A) {
- %X = add int 1, 2
- ret int %A
+define internal i32 @test1a(i32 %A) {
+ %X = add i32 1, 2
+ ret i32 %A
}
+; CHECK-LABEL: define internal i32 @test1a(
+; CHECK: ret i32 undef
-int %foo() {
- %X = call int %bar(int 17)
- ret int %X
+define i32 @test1b() {
+ %X = call i32 @test1a( i32 17 )
+ ret i32 %X
+
+; CHECK-LABEL: 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-LABEL: 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-LABEL: 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-LABEL: 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-LABEL: 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-LABEL: 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-LABEL: 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-LABEL: @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-LABEL: 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-LABEL: @test8a(
+; CHECK-NEXT: store i32 5,
+; CHECK-NEXT: ret
+}
+
+define void @test8b(i32* %P) {
+ %X = call {} @test8a(i32 5, i32* %P)
+ ret void
+; CHECK-LABEL: 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-LABEL: define i32 @test10a(
+; CHECK: ret i32 0
+}
+
+define internal i32 @test10b(i32 %x) nounwind {
+entry:
+ %r = and i32 %x, 1
+ ret i32 %r
+; CHECK-LABEL: define internal i32 @test10b(
+; CHECK: ret i32 undef
}