llvm-6502/test/Transforms/InstCombine/strrchr-1.ll
David Blaikie 5a70dd1d82 [opaque pointer type] Add textual IR support for explicit type parameter to gep operator
Similar to gep (r230786) and load (r230794) changes.

Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.

(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)

import fileinput
import sys
import re

rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)

def conv(match):
  line = match.group(1)
  line += match.group(4)
  line += ", "
  line += match.group(2)
  return line

line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
  sys.stdout.write(line[off:match.start()])
  sys.stdout.write(conv(match))
  off = match.end()
sys.stdout.write(line[off:])

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-13 18:20:45 +00:00

66 lines
1.9 KiB
LLVM

; Test that the strrchr library call simplifier works correctly.
; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
@hello = constant [14 x i8] c"hello world\5Cn\00"
@null = constant [1 x i8] zeroinitializer
@chp = global i8* zeroinitializer
declare i8* @strrchr(i8*, i32)
define void @test_simplify1() {
; CHECK: store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 6)
; CHECK-NOT: call i8* @strrchr
; CHECK: ret void
%str = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
%dst = call i8* @strrchr(i8* %str, i32 119)
store i8* %dst, i8** @chp
ret void
}
define void @test_simplify2() {
; CHECK: store i8* null, i8** @chp, align 4
; CHECK-NOT: call i8* @strrchr
; CHECK: ret void
%str = getelementptr [1 x i8], [1 x i8]* @null, i32 0, i32 0
%dst = call i8* @strrchr(i8* %str, i32 119)
store i8* %dst, i8** @chp
ret void
}
define void @test_simplify3() {
; CHECK: store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 13)
; CHECK-NOT: call i8* @strrchr
; CHECK: ret void
%src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
%dst = call i8* @strrchr(i8* %src, i32 0)
store i8* %dst, i8** @chp
ret void
}
define void @test_simplify4() {
; CHECK: store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 13)
; CHECK-NOT: call i8* @strrchr
; CHECK: ret void
%src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
%dst = call i8* @strrchr(i8* %src, i32 65280)
store i8* %dst, i8** @chp
ret void
}
define void @test_nosimplify1(i32 %chr) {
; CHECK-LABEL: @test_nosimplify1(
; CHECK: call i8* @strrchr
; CHECK: ret void
%src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
%dst = call i8* @strrchr(i8* %src, i32 %chr)
store i8* %dst, i8** @chp
ret void
}