llvm/test/Transforms/InstCombine/assume-loop-align.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
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
2015-02-27 21:17:42 +00:00

48 lines
1.6 KiB
LLVM

; RUN: opt -domtree -instcombine -loops -S < %s | FileCheck %s
; Note: The -loops above can be anything that requires the domtree, and is
; necessary to work around a pass-manager bug.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Function Attrs: nounwind uwtable
define void @foo(i32* %a, i32* %b) #0 {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 63
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%ptrint1 = ptrtoint i32* %b to i64
%maskedptr2 = and i64 %ptrint1, 63
%maskcond3 = icmp eq i64 %maskedptr2, 0
tail call void @llvm.assume(i1 %maskcond3)
br label %for.body
; CHECK-LABEL: @foo
; CHECK: load i32, i32* {{.*}} align 64
; CHECK: store i32 {{.*}} align 64
; CHECK: ret
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %b, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %0, 1
%arrayidx5 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
store i32 %add, i32* %arrayidx5, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 16
%1 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %1, 1648
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body
ret void
}
; Function Attrs: nounwind
declare void @llvm.assume(i1) #1
attributes #0 = { nounwind uwtable }
attributes #1 = { nounwind }