llvm-project/llvm/test/Analysis/BasicAA/pr52735.ll

31 lines
821 B
LLVM

; RUN: opt %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
;
; Generated from:
;
; int foo() {
; int v;
; asm goto("movl $1, %0" : "=m"(v)::: out);
; out:
; return v;
; }
target triple = "x86_64-unknown-linux-gnu"
; CHECK: Both ModRef: Ptr: i32* %v <-> callbr void asm "movl $$1, $0", "=*m,X,~{dirflag},~{fpsr},~{flags}"(i32* nonnull elementtype(i32) %v, i8* blockaddress(@foo, %out))
define dso_local i32 @foo() {
entry:
%v = alloca i32, align 4
%0 = bitcast i32* %v to i8*
callbr void asm "movl $$1, $0", "=*m,X,~{dirflag},~{fpsr},~{flags}"(i32* elementtype(i32) nonnull %v, i8* blockaddress(@foo, %out))
to label %asm.fallthrough [label %out]
asm.fallthrough:
br label %out
out:
%1 = load i32, i32* %v, align 4
ret i32 %1
}