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llvm-project/llvm/test/Analysis/AliasSet/memset.ll

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[BasicAA] Rename deprecated -basicaa to -basic-aa Follow-up to D82607 Revert an accidental change (empty.ll) of D82683
2020-06-27 11:41:37 +08:00
; RUN: opt -basic-aa -print-alias-sets -S -o - < %s 2>&1 | FileCheck %s
[AST] Add test coverage of memsets Immediately after posting https://reviews.llvm.org/D51895, I noticed a small bug. These tests would have caught that. llvm-svn: 341880
2018-09-11 07:14:30 +08:00
@s = global i8 1, align 1
@d = global i8 2, align 1
; CHECK: Alias sets for function 'test_known_size':
; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values.
[Analysis] Make LocationSize pretty-printing more descriptive This is the third patch in a series intended to make https://reviews.llvm.org/D44748 more easily reviewable. Please see that patch for more context. The second being r344013. The intent is to make the output of printing a LocationSize more precise. The main motivation for this is that we plan to add a bit to distinguish whether a given LocationSize is an upper-bound or is precise; making that information available in pretty-printing is nice. llvm-svn: 344108
2018-10-10 09:35:22 +08:00
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, LocationSize::precise(1))
[AST] Add test coverage of memsets Immediately after posting https://reviews.llvm.org/D51895, I noticed a small bug. These tests would have caught that. llvm-svn: 341880
2018-09-11 07:14:30 +08:00
define void @test_known_size(i8* noalias %d) {
entry:
call void @llvm.memset.p0i8.i64(i8* align 1 %d, i8 0, i64 1, i1 false)
ret void
}
; CHECK: Alias sets for function 'test_unknown_size':
; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, unknown)
define void @test_unknown_size(i8* noalias %d, i64 %len) {
entry:
call void @llvm.memset.p0i8.i64(i8* align 1 %d, i8 0, i64 %len, i1 false)
ret void
}
; CHECK: Alias sets for function 'test_atomic_known_size':
; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values.
[Analysis] Make LocationSize pretty-printing more descriptive This is the third patch in a series intended to make https://reviews.llvm.org/D44748 more easily reviewable. Please see that patch for more context. The second being r344013. The intent is to make the output of printing a LocationSize more precise. The main motivation for this is that we plan to add a bit to distinguish whether a given LocationSize is an upper-bound or is precise; making that information available in pretty-printing is nice. llvm-svn: 344108
2018-10-10 09:35:22 +08:00
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, LocationSize::precise(1))
[AST] Add test coverage of memsets Immediately after posting https://reviews.llvm.org/D51895, I noticed a small bug. These tests would have caught that. llvm-svn: 341880
2018-09-11 07:14:30 +08:00
define void @test_atomic_known_size(i8* noalias %d) {
entry:
call void @llvm.memset.element.unordered.atomic.p0i8.i32(i8* align 1 %d, i8 0, i64 1, i32 1)
ret void
}
; CHECK: Alias sets for function 'test_atomic_unknown_size':
; CHECK: Alias Set Tracker: 1 alias sets for 1 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, unknown)
define void @test_atomic_unknown_size(i8* noalias %d, i64 %len) {
entry:
call void @llvm.memset.element.unordered.atomic.p0i8.i32(i8* align 1 %d, i8 0, i64 %len, i32 1)
ret void
}
declare void @llvm.memset.p0i8.i64(i8* %dest, i8 %val,
i64 %len, i1 %isvolatile)
declare void @llvm.memset.element.unordered.atomic.p0i8.i32(i8* %dest,
i8 %value,
i64 %len,
i32 %element_size)