mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-16 11:30:51 +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
61 lines
2.0 KiB
LLVM
61 lines
2.0 KiB
LLVM
; RUN: opt -loop-accesses -analyze < %s | FileCheck %s
|
|
|
|
; FIXME: This is the non-debug version of unsafe-and-rt-checks.ll not
|
|
; requiring "asserts". Once we can check memory dependences without -debug,
|
|
; we should remove this test.
|
|
|
|
; Analyze this loop:
|
|
; for (i = 0; i < n; i++)
|
|
; A[i + 1] = A[i] * B[i] * C[i];
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.10.0"
|
|
|
|
; CHECK: Report: unsafe dependent memory operations in loop
|
|
|
|
; CHECK: Run-time memory checks:
|
|
; CHECK-NEXT: 0:
|
|
; CHECK-NEXT: %arrayidxA_plus_2 = getelementptr inbounds i16, i16* %a, i64 %add
|
|
; CHECK-NEXT: %arrayidxB = getelementptr inbounds i16, i16* %b, i64 %storemerge3
|
|
; CHECK-NEXT: 1:
|
|
; CHECK-NEXT: %arrayidxA_plus_2 = getelementptr inbounds i16, i16* %a, i64 %add
|
|
; CHECK-NEXT: %arrayidxC = getelementptr inbounds i16, i16* %c, i64 %storemerge3
|
|
|
|
@n = global i32 20, align 4
|
|
@B = common global i16* null, align 8
|
|
@A = common global i16* null, align 8
|
|
@C = common global i16* null, align 8
|
|
|
|
define void @f() {
|
|
entry:
|
|
%a = load i16*, i16** @A, align 8
|
|
%b = load i16*, i16** @B, align 8
|
|
%c = load i16*, i16** @C, align 8
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%storemerge3 = phi i64 [ 0, %entry ], [ %add, %for.body ]
|
|
|
|
%arrayidxA = getelementptr inbounds i16, i16* %a, i64 %storemerge3
|
|
%loadA = load i16, i16* %arrayidxA, align 2
|
|
|
|
%arrayidxB = getelementptr inbounds i16, i16* %b, i64 %storemerge3
|
|
%loadB = load i16, i16* %arrayidxB, align 2
|
|
|
|
%arrayidxC = getelementptr inbounds i16, i16* %c, i64 %storemerge3
|
|
%loadC = load i16, i16* %arrayidxC, align 2
|
|
|
|
%mul = mul i16 %loadB, %loadA
|
|
%mul1 = mul i16 %mul, %loadC
|
|
|
|
%add = add nuw nsw i64 %storemerge3, 1
|
|
%arrayidxA_plus_2 = getelementptr inbounds i16, i16* %a, i64 %add
|
|
store i16 %mul1, i16* %arrayidxA_plus_2, align 2
|
|
|
|
%exitcond = icmp eq i64 %add, 20
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body
|
|
ret void
|
|
}
|