llvm-project/llvm/test/Verifier/callbr.ll

51 lines
1.3 KiB
LLVM

; RUN: not opt -S %s -verify 2>&1 | FileCheck %s
; CHECK: Indirect label missing from arglist.
define void @foo() {
; The %4 in the indirect label list is not found in the blockaddresses in the
; arg list (bad).
callbr void asm sideeffect "${0:l} {1:l}", "X,X"(i8* blockaddress(@foo, %3), i8* blockaddress(@foo, %2))
to label %1 [label %4, label %2]
1:
ret void
2:
ret void
3:
ret void
4:
ret void
}
; CHECK-NOT: Indirect label missing from arglist.
define void @bar() {
; %4 and %2 are both in the indirect label list and the arg list (good).
callbr void asm sideeffect "${0:l} ${1:l}", "X,X"(i8* blockaddress(@bar, %4), i8* blockaddress(@bar, %2))
to label %1 [label %4, label %2]
1:
ret void
2:
ret void
3:
ret void
4:
ret void
}
; CHECK-NOT: Indirect label missing from arglist.
define void @baz() {
; note %2 blockaddress. Such a case is possible when passing the address of
; a label as an input to the inline asm (both address of label and asm goto
; use blockaddress constants; we're testing that the indirect label list from
; the asm goto is in the arg list to the asm).
callbr void asm sideeffect "${0:l} ${1:l} ${2:l}", "X,X,X"(i8* blockaddress(@baz, %4), i8* blockaddress(@baz, %2), i8* blockaddress(@baz, %3))
to label %1 [label %3, label %4]
1:
ret void
2:
ret void
3:
ret void
4:
ret void
}