forked from OSchip/llvm-project
126 lines
2.4 KiB
LLVM
126 lines
2.4 KiB
LLVM
; RUN: llvm-as %s -o %t.bc
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; RUN: llvm-link %t.bc -S | FileCheck %s
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declare void @f(i8*)
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; Test that a blockaddress in @y referring to %label in @x can be moved when @y
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; appears after @x.
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define void @x() {
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br label %label
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label:
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call void @y()
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ret void
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}
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define void @y() {
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; CHECK: define void @y() {
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; CHECK-NEXT: call void @f(i8* blockaddress(@x, %label))
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call void @f(i8* blockaddress(@x, %label))
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ret void
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}
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; Test that a blockaddress in @a referring to %label in @b can be moved when @a
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; appears before @b.
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define void @a() {
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; CHECK: define void @a() {
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; CHECK-NEXT: call void @f(i8* blockaddress(@b, %label))
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call void @f(i8* blockaddress(@b, %label))
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ret void
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}
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define void @b() {
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br label %label
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label:
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call void @a()
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ret void
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}
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; Test that @c and @d can both have blockaddress Constants that refer to one
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; another.
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define void @c() {
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; CHECK: define void @c() {
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; CHECK-NEXT: br label %label
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; CHECK-EMPTY:
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; CHECK-NEXT: label:
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; CHECK-NEXT: call void @f(i8* blockaddress(@d, %label))
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br label %label
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label:
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call void @f(i8* blockaddress(@d, %label))
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ret void
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}
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define void @d() {
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; CHECK: define void @d() {
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; CHECK-NEXT: br label %label
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; CHECK-EMPTY:
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; CHECK-NEXT: label:
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; CHECK-NEXT: call void @f(i8* blockaddress(@c, %label))
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br label %label
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label:
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call void @f(i8* blockaddress(@c, %label))
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ret void
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}
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; Test that Functions added to IRLinker's Worklist member lazily (linkonce_odr)
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; aren't susceptible to the the same issues as @x/@y above.
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define void @parsed() {
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br label %label
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label:
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ret void
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}
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define linkonce_odr void @lazy() {
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; CHECK: define linkonce_odr void @lazy() {
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; CHECK-NEXT: br label %label
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; CHECK-EMPTY:
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; CHECK-NEXT: label:
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; CHECK-NEXT: call void @f(i8* blockaddress(@parsed, %label))
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br label %label
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label:
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call void @f(i8* blockaddress(@parsed, %label))
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ret void
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}
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define void @parsed2() {
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call void @lazy()
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ret void
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}
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; Same test as @lazy, just with one more level of lazy parsed functions.
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define void @parsed3() {
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br label %label
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label:
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ret void
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}
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define linkonce_odr void @lazy1() {
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; CHECK: define linkonce_odr void @lazy1() {
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; CHECK-NEXT: br label %label
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; CHECK-EMPTY:
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; CHECK-NEXT: label:
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; CHECK-NEXT: call void @f(i8* blockaddress(@parsed3, %label))
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br label %label
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label:
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call void @f(i8* blockaddress(@parsed3, %label))
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ret void
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}
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define linkonce_odr void @lazy2() {
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call void @lazy1()
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ret void
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}
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define void @parsed4() {
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call void @lazy2()
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ret void
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}
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