mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-14 11:32:34 +00:00
7c9c6ed761
Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
80 lines
2.0 KiB
LLVM
80 lines
2.0 KiB
LLVM
; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; rdar://7282591
|
|
|
|
@X = common global i32 0
|
|
@Y = common global i32 0
|
|
@Z = common global i32 0
|
|
|
|
; CHECK-LABEL: foo
|
|
; CHECK: NoAlias: i32* %P, i32* @Z
|
|
|
|
define void @foo(i32 %cond) nounwind {
|
|
entry:
|
|
%"alloca point" = bitcast i32 0 to i32
|
|
%tmp = icmp ne i32 %cond, 0
|
|
br i1 %tmp, label %bb, label %bb1
|
|
|
|
bb:
|
|
br label %bb2
|
|
|
|
bb1:
|
|
br label %bb2
|
|
|
|
bb2:
|
|
%P = phi i32* [ @X, %bb ], [ @Y, %bb1 ]
|
|
%tmp1 = load i32, i32* @Z, align 4
|
|
store i32 123, i32* %P, align 4
|
|
%tmp2 = load i32, i32* @Z, align 4
|
|
br label %return
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; Pointers can vary in between iterations of loops.
|
|
; PR18068
|
|
|
|
; CHECK-LABEL: pr18068
|
|
; CHECK: MayAlias: i32* %0, i32* %arrayidx5
|
|
; CHECK: NoAlias: i32* %arrayidx13, i32* %arrayidx5
|
|
|
|
define i32 @pr18068(i32* %jj7, i32* %j) {
|
|
entry:
|
|
%oa5 = alloca [100 x i32], align 16
|
|
br label %codeRepl
|
|
|
|
codeRepl:
|
|
%0 = phi i32* [ %arrayidx13, %for.body ], [ %j, %entry ]
|
|
%targetBlock = call i1 @cond(i32* %jj7)
|
|
br i1 %targetBlock, label %for.body, label %bye
|
|
|
|
for.body:
|
|
%1 = load i32, i32* %jj7, align 4
|
|
%idxprom4 = zext i32 %1 to i64
|
|
%arrayidx5 = getelementptr inbounds [100 x i32], [100 x i32]* %oa5, i64 0, i64 %idxprom4
|
|
%2 = load i32, i32* %arrayidx5, align 4
|
|
%sub6 = sub i32 %2, 6
|
|
store i32 %sub6, i32* %arrayidx5, align 4
|
|
; %0 and %arrayidx5 can alias! It is not safe to DSE the above store.
|
|
%3 = load i32, i32* %0, align 4
|
|
store i32 %3, i32* %arrayidx5, align 4
|
|
%sub11 = add i32 %1, -1
|
|
%idxprom12 = zext i32 %sub11 to i64
|
|
%arrayidx13 = getelementptr inbounds [100 x i32], [100 x i32]* %oa5, i64 0, i64 %idxprom12
|
|
call void @inc(i32* %jj7)
|
|
br label %codeRepl
|
|
|
|
bye:
|
|
%.reload = load i32, i32* %jj7, align 4
|
|
ret i32 %.reload
|
|
}
|
|
|
|
declare i1 @cond(i32*)
|
|
|
|
declare void @inc(i32*)
|
|
|
|
|