forked from OSchip/llvm-project
66 lines
2.5 KiB
LLVM
66 lines
2.5 KiB
LLVM
; RUN: opt -basicaa -print-alias-sets -S -o - < %s 2>&1 | FileCheck %s
|
|
|
|
; CHECK: Alias sets for function 'test1':
|
|
; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
|
|
; CHECK-NOT: 1 Unknown instruction
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
|
|
define void @test1(i32 %c) {
|
|
entry:
|
|
%a = alloca i8, align 1
|
|
%b = alloca i8, align 1
|
|
store i8 1, i8* %a, align 1
|
|
%cond1 = icmp ne i32 %c, 0
|
|
call void @llvm.assume(i1 %cond1)
|
|
store i8 1, i8* %b, align 1
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Alias sets for function 'test2':
|
|
; CHECK: Alias Set Tracker: 3 alias sets for 2 pointer values.
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] may alias, Ref
|
|
; CHECK: 1 Unknown instructions: call void (i1, ...) @llvm.experimental.guard(i1 %cond1) [ "deopt"() ]
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
|
|
define void @test2(i32 %c) {
|
|
entry:
|
|
%a = alloca i8, align 1
|
|
%b = alloca i8, align 1
|
|
store i8 1, i8* %a, align 1
|
|
%cond1 = icmp ne i32 %c, 0
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond1)["deopt"()]
|
|
store i8 1, i8* %b, align 1
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Alias sets for function 'test3':
|
|
; CHECK: Alias Set Tracker: 1 alias sets for 2 pointer values.
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 3] may alias, Mod/Ref Pointers: (i8* %a, 1), (i8* %b, 1)
|
|
; CHECK: 1 Unknown instructions: call void (i1, ...) @llvm.experimental.guard(i1 %cond1) [ "deopt"() ]
|
|
define void @test3(i32 %c, i8* %a, i8* %b) {
|
|
entry:
|
|
store i8 1, i8* %a, align 1
|
|
%cond1 = icmp ne i32 %c, 0
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond1)["deopt"()]
|
|
store i8 1, i8* %b, align 1
|
|
ret void
|
|
}
|
|
|
|
; CHECK: Alias sets for function 'test4':
|
|
; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %a, 1)
|
|
; CHECK: 1 Unknown instructions: call void (i1, ...) @llvm.experimental.guard(i1 %cond1) [ "deopt"() ]
|
|
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
|
|
define void @test4(i32 %c, i8* %a) {
|
|
entry:
|
|
%b = alloca i8, align 1
|
|
store i8 1, i8* %a, align 1
|
|
%cond1 = icmp ne i32 %c, 0
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond1)["deopt"()]
|
|
store i8 1, i8* %b, align 1
|
|
ret void
|
|
}
|
|
|
|
declare void @llvm.assume(i1)
|
|
declare void @llvm.experimental.guard(i1, ...)
|