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llvm-mirror/test/Analysis/BasicAA/cs-cs.ll
Daniel Neilson f59acc15ad Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1) 
Summary:
 This is a resurrection of work first proposed and discussed in Aug 2015:
   http://lists.llvm.org/pipermail/llvm-dev/2015-August/089384.html
and initially landed (but then backed out) in Nov 2015:
   http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html

 The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument
which is required to be a constant integer. It represents the alignment of the
dest (and source), and so must be the minimum of the actual alignment of the
two.

 This change is the first in a series that allows source and dest to each
have their own alignments by using the alignment attribute on their arguments.

 In this change we:
1) Remove the alignment argument.
2) Add alignment attributes to the source & dest arguments. We, temporarily,
   require that the alignments for source & dest be equal.

 For example, code which used to read:
  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false)
will now read
  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false)

 Downstream users may have to update their lit tests that check for
@llvm.memcpy/memmove/memset call/declaration patterns. The following extended sed script
may help with updating the majority of your tests, but it does not catch all possible
patterns so some manual checking and updating will be required.

s~declare void @llvm\.mem(set|cpy|move)\.p([^(]*)\((.*), i32, i1\)~declare void @llvm.mem\1.p\2(\3, i1)~g
s~call void @llvm\.memset\.p([^(]*)i8\(i8([^*]*)\* (.*), i8 (.*), i8 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i8(i8\2* \3, i8 \4, i8 \5, i1 \6)~g
s~call void @llvm\.memset\.p([^(]*)i16\(i8([^*]*)\* (.*), i8 (.*), i16 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i16(i8\2* \3, i8 \4, i16 \5, i1 \6)~g
s~call void @llvm\.memset\.p([^(]*)i32\(i8([^*]*)\* (.*), i8 (.*), i32 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i32(i8\2* \3, i8 \4, i32 \5, i1 \6)~g
s~call void @llvm\.memset\.p([^(]*)i64\(i8([^*]*)\* (.*), i8 (.*), i64 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i64(i8\2* \3, i8 \4, i64 \5, i1 \6)~g
s~call void @llvm\.memset\.p([^(]*)i128\(i8([^*]*)\* (.*), i8 (.*), i128 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.memset.p\1i128(i8\2* \3, i8 \4, i128 \5, i1 \6)~g
s~call void @llvm\.memset\.p([^(]*)i8\(i8([^*]*)\* (.*), i8 (.*), i8 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i8(i8\2* align \6 \3, i8 \4, i8 \5, i1 \7)~g
s~call void @llvm\.memset\.p([^(]*)i16\(i8([^*]*)\* (.*), i8 (.*), i16 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i16(i8\2* align \6 \3, i8 \4, i16 \5, i1 \7)~g
s~call void @llvm\.memset\.p([^(]*)i32\(i8([^*]*)\* (.*), i8 (.*), i32 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i32(i8\2* align \6 \3, i8 \4, i32 \5, i1 \7)~g
s~call void @llvm\.memset\.p([^(]*)i64\(i8([^*]*)\* (.*), i8 (.*), i64 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i64(i8\2* align \6 \3, i8 \4, i64 \5, i1 \7)~g
s~call void @llvm\.memset\.p([^(]*)i128\(i8([^*]*)\* (.*), i8 (.*), i128 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.memset.p\1i128(i8\2* align \6 \3, i8 \4, i128 \5, i1 \7)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i8\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i8 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i8(i8\3* \4, i8\5* \6, i8 \7, i1 \8)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i16\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i16 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i16(i8\3* \4, i8\5* \6, i16 \7, i1 \8)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i32\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i32 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i32(i8\3* \4, i8\5* \6, i32 \7, i1 \8)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i64\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i64 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i64(i8\3* \4, i8\5* \6, i64 \7, i1 \8)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i128\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i128 (.*), i32 [01], i1 ([^)]*)\)~call void @llvm.mem\1.p\2i128(i8\3* \4, i8\5* \6, i128 \7, i1 \8)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i8\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i8 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i8(i8\3* align \8 \4, i8\5* align \8 \6, i8 \7, i1 \9)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i16\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i16 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i16(i8\3* align \8 \4, i8\5* align \8 \6, i16 \7, i1 \9)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i32\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i32 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i32(i8\3* align \8 \4, i8\5* align \8 \6, i32 \7, i1 \9)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i64\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i64 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i64(i8\3* align \8 \4, i8\5* align \8 \6, i64 \7, i1 \9)~g
s~call void @llvm\.mem(cpy|move)\.p([^(]*)i128\(i8([^*]*)\* (.*), i8([^*]*)\* (.*), i128 (.*), i32 ([0-9]*), i1 ([^)]*)\)~call void @llvm.mem\1.p\2i128(i8\3* align \8 \4, i8\5* align \8 \6, i128 \7, i1 \9)~g

 The remaining changes in the series will:
Step 2) Expand the IRBuilder API to allow creation of memcpy/memmove with differing
   source and dest alignments.
Step 3) Update Clang to use the new IRBuilder API.
Step 4) Update Polly to use the new IRBuilder API.
Step 5) Update LLVM passes that create memcpy/memmove calls to use the new IRBuilder API,
        and those that use use MemIntrinsicInst::[get|set]Alignment() to use
        getDestAlignment() and getSourceAlignment() instead.
Step 6) Remove the single-alignment IRBuilder API for memcpy/memmove, and the
        MemIntrinsicInst::[get|set]Alignment() methods.

Reviewers: pete, hfinkel, lhames, reames, bollu

Reviewed By: reames

Subscribers: niosHD, reames, jholewinski, qcolombet, jfb, sanjoy, arsenm, dschuff, dylanmckay, mehdi_amini, sdardis, nemanjai, david2050, nhaehnle, javed.absar, sbc100, jgravelle-google, eraman, aheejin, kbarton, JDevlieghere, asb, rbar, johnrusso, simoncook, jordy.potman.lists, apazos, sabuasal, llvm-commits

Differential Revision: https://reviews.llvm.org/D41675

llvm-svn: 322965
2018-01-19 17:13:12 +00:00

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; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "arm-apple-ios"
declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1) #0
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1) #0
declare void @a_readonly_func(i8*) #1
declare void @a_writeonly_func(i8*) #2
define void @test2(i8* %P, i8* %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test2:
; CHECK: MayAlias: i8* %P, i8* %Q
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test2a(i8* noalias %P, i8* noalias %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test2a:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test2b(i8* noalias %P, i8* noalias %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
%R = getelementptr i8, i8* %P, i64 12
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test2b:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: NoAlias: i8* %P, i8* %R
; CHECK: NoAlias: i8* %Q, i8* %R
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test2c(i8* noalias %P, i8* noalias %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
%R = getelementptr i8, i8* %P, i64 11
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test2c:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: NoAlias: i8* %P, i8* %R
; CHECK: NoAlias: i8* %Q, i8* %R
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test2d(i8* noalias %P, i8* noalias %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
%R = getelementptr i8, i8* %P, i64 -12
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test2d:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: NoAlias: i8* %P, i8* %R
; CHECK: NoAlias: i8* %Q, i8* %R
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test2e(i8* noalias %P, i8* noalias %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
%R = getelementptr i8, i8* %P, i64 -11
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test2e:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: NoAlias: i8* %P, i8* %R
; CHECK: NoAlias: i8* %Q, i8* %R
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %R, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test3(i8* %P, i8* %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test3:
; CHECK: MayAlias: i8* %P, i8* %Q
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
}
define void @test3a(i8* noalias %P, i8* noalias %Q) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test3a:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 8, i1 false)
}
define void @test4(i8* %P, i8* noalias %Q) #3 {
tail call void @llvm.memset.p0i8.i64(i8* %P, i8 42, i64 8, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test4:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: Just Mod (MustAlias): Ptr: i8* %P <-> tail call void @llvm.memset.p0i8.i64(i8* %P, i8 42, i64 8, i1 false)
; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.memset.p0i8.i64(i8* %P, i8 42, i64 8, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memset.p0i8.i64(i8* %P, i8 42, i64 8, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memset.p0i8.i64(i8* %P, i8 42, i64 8, i1 false)
}
define void @test5(i8* %P, i8* %Q, i8* %R) #3 {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test5:
; CHECK: MayAlias: i8* %P, i8* %Q
; CHECK: MayAlias: i8* %P, i8* %R
; CHECK: MayAlias: i8* %Q, i8* %R
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Both ModRef: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: Both ModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test5a(i8* noalias %P, i8* noalias %Q, i8* noalias %R) nounwind ssp {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
ret void
; CHECK-LABEL: Function: test5a:
; CHECK: NoAlias: i8* %P, i8* %Q
; CHECK: NoAlias: i8* %P, i8* %R
; CHECK: NoAlias: i8* %Q, i8* %R
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
; CHECK: Just Mod: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: Just Ref: Ptr: i8* %R <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false)
; CHECK: Just Mod: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %R, i64 12, i1 false) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i1 false)
}
define void @test6(i8* %P) #3 {
call void @llvm.memset.p0i8.i64(i8* align 8 %P, i8 -51, i64 32, i1 false)
call void @a_readonly_func(i8* %P)
ret void
; CHECK-LABEL: Function: test6:
; CHECK: Just Mod (MustAlias): Ptr: i8* %P <-> call void @llvm.memset.p0i8.i64(i8* align 8 %P, i8 -51, i64 32, i1 false)
; CHECK: Just Ref: Ptr: i8* %P <-> call void @a_readonly_func(i8* %P)
; CHECK: Just Mod: call void @llvm.memset.p0i8.i64(i8* align 8 %P, i8 -51, i64 32, i1 false) <-> call void @a_readonly_func(i8* %P)
; CHECK: Just Ref: call void @a_readonly_func(i8* %P) <-> call void @llvm.memset.p0i8.i64(i8* align 8 %P, i8 -51, i64 32, i1 false)
}
define void @test7(i8* %P) #3 {
call void @a_writeonly_func(i8* %P)
call void @a_readonly_func(i8* %P)
ret void
; CHECK-LABEL: Function: test7:
; CHECK: Just Mod: Ptr: i8* %P <-> call void @a_writeonly_func(i8* %P)
; CHECK: Just Ref: Ptr: i8* %P <-> call void @a_readonly_func(i8* %P)
; CHECK: Just Mod: call void @a_writeonly_func(i8* %P) <-> call void @a_readonly_func(i8* %P)
; CHECK: Just Ref: call void @a_readonly_func(i8* %P) <-> call void @a_writeonly_func(i8* %P)
}
declare void @an_inaccessiblememonly_func() #4
declare void @an_inaccessibleorargmemonly_func(i8*) #5
declare void @an_argmemonly_func(i8*) #0
define void @test8(i8* %p) {
entry:
%q = getelementptr i8, i8* %p, i64 16
call void @a_readonly_func(i8* %p)
call void @an_inaccessiblememonly_func()
call void @a_writeonly_func(i8* %q)
call void @an_inaccessiblememonly_func()
call void @an_inaccessibleorargmemonly_func(i8* %q)
call void @an_argmemonly_func(i8* %q)
ret void
; CHECK-LABEL: Function: test8
; CHECK: NoModRef: Ptr: i8* %p <-> call void @an_inaccessiblememonly_func()
; CHECK: NoModRef: Ptr: i8* %q <-> call void @an_inaccessiblememonly_func()
; CHECK: NoModRef: Ptr: i8* %p <-> call void @an_inaccessibleorargmemonly_func(i8* %q)
; CHECK: Both ModRef (MustAlias): Ptr: i8* %q <-> call void @an_inaccessibleorargmemonly_func(i8* %q)
; CHECK: NoModRef: Ptr: i8* %p <-> call void @an_argmemonly_func(i8* %q)
; CHECK: Both ModRef (MustAlias): Ptr: i8* %q <-> call void @an_argmemonly_func(i8* %q)
; CHECK: Just Ref: call void @a_readonly_func(i8* %p) <-> call void @an_inaccessiblememonly_func()
; CHECK: Just Ref: call void @a_readonly_func(i8* %p) <-> call void @an_inaccessibleorargmemonly_func(i8* %q)
; CHECK: Just Ref: call void @a_readonly_func(i8* %p) <-> call void @an_argmemonly_func(i8* %q)
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() <-> call void @a_readonly_func(i8* %p)
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() <-> call void @a_writeonly_func(i8* %q)
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() <-> call void @an_inaccessiblememonly_func()
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() <-> call void @an_inaccessibleorargmemonly_func(i8* %q)
; CHECK: NoModRef: call void @an_inaccessiblememonly_func() <-> call void @an_argmemonly_func(i8* %q)
; CHECK: Just Mod: call void @a_writeonly_func(i8* %q) <-> call void @an_inaccessiblememonly_func()
; CHECK: Just Mod: call void @a_writeonly_func(i8* %q) <-> call void @an_inaccessibleorargmemonly_func(i8* %q)
; CHECK: Just Mod: call void @a_writeonly_func(i8* %q) <-> call void @an_argmemonly_func(i8* %q)
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) <-> call void @a_readonly_func(i8* %p)
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) <-> call void @a_writeonly_func(i8* %q)
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) <-> call void @an_inaccessiblememonly_func()
; CHECK: Both ModRef (MustAlias): call void @an_inaccessibleorargmemonly_func(i8* %q) <-> call void @an_argmemonly_func(i8* %q)
; CHECK: Both ModRef: call void @an_argmemonly_func(i8* %q) <-> call void @a_readonly_func(i8* %p)
; CHECK: Both ModRef: call void @an_argmemonly_func(i8* %q) <-> call void @a_writeonly_func(i8* %q)
; CHECK: NoModRef: call void @an_argmemonly_func(i8* %q) <-> call void @an_inaccessiblememonly_func()
; CHECK: Both ModRef (MustAlias): call void @an_argmemonly_func(i8* %q) <-> call void @an_inaccessibleorargmemonly_func(i8* %q)
}
;; test that MustAlias is set for calls when no MayAlias is found.
declare void @another_argmemonly_func(i8*, i8*) #0
define void @test8a(i8* noalias %p, i8* noalias %q) {
entry:
call void @another_argmemonly_func(i8* %p, i8* %q)
ret void
; CHECK-LABEL: Function: test8a
; CHECK: Both ModRef: Ptr: i8* %p <-> call void @another_argmemonly_func(i8* %p, i8* %q)
; CHECK: Both ModRef: Ptr: i8* %q <-> call void @another_argmemonly_func(i8* %p, i8* %q)
}
define void @test8b(i8* %p, i8* %q) {
entry:
call void @another_argmemonly_func(i8* %p, i8* %q)
ret void
; CHECK-LABEL: Function: test8b
; CHECK: Both ModRef: Ptr: i8* %p <-> call void @another_argmemonly_func(i8* %p, i8* %q)
; CHECK: Both ModRef: Ptr: i8* %q <-> call void @another_argmemonly_func(i8* %p, i8* %q)
}
;; test that unknown operand bundle has unknown effect to the heap
define void @test9(i8* %p) {
; CHECK-LABEL: Function: test9
entry:
%q = getelementptr i8, i8* %p, i64 16
call void @a_readonly_func(i8* %p) [ "unknown"() ]
call void @an_inaccessiblememonly_func() [ "unknown"() ]
call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ]
call void @an_argmemonly_func(i8* %q) [ "unknown"() ]
ret void
; CHECK: Both ModRef: Ptr: i8* %p <-> call void @a_readonly_func(i8* %p) [ "unknown"() ]
; CHECK: Both ModRef: Ptr: i8* %q <-> call void @a_readonly_func(i8* %p) [ "unknown"() ]
; CHECK: Both ModRef: Ptr: i8* %p <-> call void @an_inaccessiblememonly_func() [ "unknown"() ]
; CHECK: Both ModRef: Ptr: i8* %q <-> call void @an_inaccessiblememonly_func() [ "unknown"() ]
; CHECK: Both ModRef: Ptr: i8* %p <-> call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: Ptr: i8* %q <-> call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: Ptr: i8* %p <-> call void @an_argmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: Ptr: i8* %q <-> call void @an_argmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: call void @a_readonly_func(i8* %p) [ "unknown"() ] <-> call void @an_inaccessiblememonly_func() [ "unknown"() ]
; CHECK: Both ModRef: call void @a_readonly_func(i8* %p) [ "unknown"() ] <-> call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: call void @a_readonly_func(i8* %p) [ "unknown"() ] <-> call void @an_argmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() [ "unknown"() ] <-> call void @a_readonly_func(i8* %p) [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() [ "unknown"() ] <-> call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() [ "unknown"() ] <-> call void @an_argmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ] <-> call void @a_readonly_func(i8* %p) [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ] <-> call void @an_inaccessiblememonly_func() [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ] <-> call void @an_argmemonly_func(i8* %q) [ "unknown"() ]
; CHECK: Both ModRef: call void @an_argmemonly_func(i8* %q) [ "unknown"() ] <-> call void @a_readonly_func(i8* %p) [ "unknown"() ]
; CHECK: Both ModRef: call void @an_argmemonly_func(i8* %q) [ "unknown"() ] <-> call void @an_inaccessiblememonly_func() [ "unknown"() ]
; CHECK: Both ModRef: call void @an_argmemonly_func(i8* %q) [ "unknown"() ] <-> call void @an_inaccessibleorargmemonly_func(i8* %q) [ "unknown"() ]
}
;; test callsite overwrite of unknown operand bundle
define void @test10(i8* %p) {
; CHECK-LABEL: Function: test10
entry:
%q = getelementptr i8, i8* %p, i64 16
call void @a_readonly_func(i8* %p) #6 [ "unknown"() ]
call void @an_inaccessiblememonly_func() #7 [ "unknown"() ]
call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ]
call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ]
ret void
; CHECK: Just Ref: Ptr: i8* %p <-> call void @a_readonly_func(i8* %p) #6 [ "unknown"() ]
; CHECK: Just Ref: Ptr: i8* %q <-> call void @a_readonly_func(i8* %p) #6 [ "unknown"() ]
; CHECK: NoModRef: Ptr: i8* %p <-> call void @an_inaccessiblememonly_func() #7 [ "unknown"() ]
; CHECK: NoModRef: Ptr: i8* %q <-> call void @an_inaccessiblememonly_func() #7 [ "unknown"() ]
; CHECK: NoModRef: Ptr: i8* %p <-> call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ]
; CHECK: Both ModRef (MustAlias): Ptr: i8* %q <-> call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ]
; CHECK: NoModRef: Ptr: i8* %p <-> call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ]
; CHECK: Both ModRef (MustAlias): Ptr: i8* %q <-> call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ]
; CHECK: Just Ref: call void @a_readonly_func(i8* %p) #6 [ "unknown"() ] <-> call void @an_inaccessiblememonly_func() #7 [ "unknown"() ]
; CHECK: Just Ref: call void @a_readonly_func(i8* %p) #6 [ "unknown"() ] <-> call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ]
; CHECK: Just Ref: call void @a_readonly_func(i8* %p) #6 [ "unknown"() ] <-> call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() #7 [ "unknown"() ] <-> call void @a_readonly_func(i8* %p) #6 [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessiblememonly_func() #7 [ "unknown"() ] <-> call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ]
; CHECK: NoModRef: call void @an_inaccessiblememonly_func() #7 [ "unknown"() ] <-> call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ] <-> call void @a_readonly_func(i8* %p) #6 [ "unknown"() ]
; CHECK: Both ModRef: call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ] <-> call void @an_inaccessiblememonly_func() #7 [ "unknown"() ]
; CHECK: Both ModRef (MustAlias): call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ] <-> call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ]
; CHECK: Both ModRef: call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ] <-> call void @a_readonly_func(i8* %p) #6 [ "unknown"() ]
; CHECK: NoModRef: call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ] <-> call void @an_inaccessiblememonly_func() #7 [ "unknown"() ]
; CHECK: Both ModRef (MustAlias): call void @an_argmemonly_func(i8* %q) #9 [ "unknown"() ] <-> call void @an_inaccessibleorargmemonly_func(i8* %q) #8 [ "unknown"() ]
}
attributes #0 = { argmemonly nounwind }
attributes #1 = { noinline nounwind readonly }
attributes #2 = { noinline nounwind writeonly }
attributes #3 = { nounwind ssp }
attributes #4 = { inaccessiblememonly nounwind }
attributes #5 = { inaccessiblemem_or_argmemonly nounwind }
attributes #6 = { readonly }
attributes #7 = { inaccessiblememonly }
attributes #8 = { inaccessiblemem_or_argmemonly }
attributes #9 = { argmemonly }
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