llvm-6502/test/CodeGen/X86/reverse_branches.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

105 lines
3.5 KiB
LLVM

; RUN: llc -mtriple=x86_64-apple-darwin < %s | FileCheck %s
@.str2 = private unnamed_addr constant [7 x i8] c"memchr\00", align 1
@.str3 = private unnamed_addr constant [11 x i8] c"bsd_memchr\00", align 1
@str4 = private unnamed_addr constant [5 x i8] c"Bug!\00"
; Make sure at end of do.cond.i, we jump to do.body.i first to have a tighter
; inner loop.
define i32 @test_branches_order() uwtable ssp {
; CHECK-LABEL: test_branches_order:
; CHECK: [[L0:LBB0_[0-9]+]]: ## %do.body.i
; CHECK: je
; CHECK: %do.cond.i
; CHECK: jne [[L0]]
; CHECK: jmp
; CHECK: %exit
entry:
%strs = alloca [1000 x [1001 x i8]], align 16
br label %for.cond
for.cond:
%j.0 = phi i32 [ 0, %entry ], [ %inc10, %for.inc9 ]
%cmp = icmp slt i32 %j.0, 1000
br i1 %cmp, label %for.cond1, label %for.end11
for.cond1:
%indvars.iv50 = phi i64 [ %indvars.iv.next51, %for.body3 ], [ 0, %for.cond ]
%0 = trunc i64 %indvars.iv50 to i32
%cmp2 = icmp slt i32 %0, 1000
br i1 %cmp2, label %for.body3, label %for.inc9
for.body3:
%arraydecay = getelementptr inbounds [1000 x [1001 x i8]], [1000 x [1001 x i8]]* %strs, i64 0, i64 %indvars.iv50, i64 0
%call = call i8* @memchr(i8* %arraydecay, i32 120, i64 1000)
%add.ptr = getelementptr inbounds [1000 x [1001 x i8]], [1000 x [1001 x i8]]* %strs, i64 0, i64 %indvars.iv50, i64 %indvars.iv50
%cmp7 = icmp eq i8* %call, %add.ptr
%indvars.iv.next51 = add i64 %indvars.iv50, 1
br i1 %cmp7, label %for.cond1, label %if.then
if.then:
%puts = call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str4, i64 0, i64 0))
call void @exit(i32 1) noreturn
unreachable
for.inc9:
%inc10 = add nsw i32 %j.0, 1
br label %for.cond
for.end11:
%puts42 = call i32 @puts(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str2, i64 0, i64 0))
br label %for.cond14
for.cond14:
%j13.0 = phi i32 [ 0, %for.end11 ], [ %inc39, %for.inc38 ]
%cmp15 = icmp slt i32 %j13.0, 1000
br i1 %cmp15, label %for.cond18, label %for.end40
for.cond18:
%indvars.iv = phi i64 [ %indvars.iv.next, %exit ], [ 0, %for.cond14 ]
%1 = trunc i64 %indvars.iv to i32
%cmp19 = icmp slt i32 %1, 1000
br i1 %cmp19, label %for.body20, label %for.inc38
for.body20:
%arraydecay24 = getelementptr inbounds [1000 x [1001 x i8]], [1000 x [1001 x i8]]* %strs, i64 0, i64 %indvars.iv, i64 0
br label %do.body.i
do.body.i:
%n.addr.0.i = phi i64 [ %dec.i, %do.cond.i ], [ 1000, %for.body20 ]
%p.0.i = phi i8* [ %incdec.ptr.i, %do.cond.i ], [ %arraydecay24, %for.body20 ]
%2 = load i8, i8* %p.0.i, align 1
%cmp3.i = icmp eq i8 %2, 120
br i1 %cmp3.i, label %exit, label %do.cond.i
do.cond.i:
%incdec.ptr.i = getelementptr inbounds i8, i8* %p.0.i, i64 1
%dec.i = add i64 %n.addr.0.i, -1
%cmp5.i = icmp eq i64 %dec.i, 0
br i1 %cmp5.i, label %if.then32, label %do.body.i
exit:
%add.ptr30 = getelementptr inbounds [1000 x [1001 x i8]], [1000 x [1001 x i8]]* %strs, i64 0, i64 %indvars.iv, i64 %indvars.iv
%cmp31 = icmp eq i8* %p.0.i, %add.ptr30
%indvars.iv.next = add i64 %indvars.iv, 1
br i1 %cmp31, label %for.cond18, label %if.then32
if.then32:
%puts43 = call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str4, i64 0, i64 0))
call void @exit(i32 1) noreturn
unreachable
for.inc38:
%inc39 = add nsw i32 %j13.0, 1
br label %for.cond14
for.end40:
%puts44 = call i32 @puts(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str3, i64 0, i64 0))
ret i32 0
}
declare i8* @memchr(i8*, i32, i64) nounwind readonly
declare void @exit(i32) noreturn
declare i32 @puts(i8* nocapture) nounwind