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llvm-mirror/test/Transforms/SimplifyCFG/MagicPointer.ll
David Blaikie 3ea2df7c7b [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:])

llvm-svn: 232184
2015-03-13 18:20:45 +00:00

150 lines
6.4 KiB
LLVM

; Test that simplifycfg can create switch instructions from constant pointers.
;
; RUN: opt < %s -simplifycfg -S | FileCheck %s
target datalayout = "e-p:64:64:64-p1:16:16:16-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"
target triple = "x86_64-apple-darwin10.0.0"
@.str = private constant [5 x i8] c"null\00" ; <[5 x i8]*> [#uses=2]
@.str1 = private constant [4 x i8] c"one\00" ; <[4 x i8]*> [#uses=2]
@.str2 = private constant [4 x i8] c"two\00" ; <[4 x i8]*> [#uses=2]
@.str3 = private constant [5 x i8] c"four\00" ; <[5 x i8]*> [#uses=2]
@.str_as1 = private addrspace(1) constant [5 x i8] c"null\00" ; <[5 x i8]*> [#uses=2]
@.str1_as1 = private addrspace(1) constant [4 x i8] c"one\00" ; <[4 x i8]*> [#uses=2]
@.str2_as1 = private addrspace(1) constant [4 x i8] c"two\00" ; <[4 x i8]*> [#uses=2]
@.str3_as1 = private addrspace(1) constant [5 x i8] c"four\00" ; <[5 x i8]*> [#uses=2]
declare i32 @puts(i8*)
declare i32 @puts_as1(i8 addrspace(1)*)
define void @f(i8* %x) nounwind ssp {
; CHECK-LABEL: @f(
; CHECK: switch i64 %magicptr
; CHECK: i64 0, label
; CHECK: i64 1, label
; CHECK: i64 2, label
; CHECK: i64 3, label
; CHECK: i64 4, label
; CHECK: }
entry:
%tobool = icmp eq i8* %x, null ; <i1> [#uses=1]
br i1 %tobool, label %if.then, label %if.else
if.then: ; preds = %entry
%call = call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end21
if.else: ; preds = %entry
%cmp = icmp eq i8* %x, inttoptr (i64 1 to i8*) ; <i1> [#uses=1]
br i1 %cmp, label %if.then2, label %if.else4
if.then2: ; preds = %if.else
%call3 = call i32 @puts(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str1, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end20
if.else4: ; preds = %if.else
%cmp6 = icmp eq i8* %x, inttoptr (i64 2 to i8*) ; <i1> [#uses=1]
br i1 %cmp6, label %if.then9, label %lor.lhs.false
lor.lhs.false: ; preds = %if.else4
%cmp8 = icmp eq i8* %x, inttoptr (i64 3 to i8*) ; <i1> [#uses=1]
br i1 %cmp8, label %if.then9, label %if.else11
if.then9: ; preds = %lor.lhs.false, %if.else4
%call10 = call i32 @puts(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str2, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end19
if.else11: ; preds = %lor.lhs.false
%cmp13 = icmp eq i8* %x, inttoptr (i64 4 to i8*) ; <i1> [#uses=1]
br i1 %cmp13, label %if.then14, label %if.else16
if.then14: ; preds = %if.else11
%call15 = call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str3, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end
if.else16: ; preds = %if.else11
%call18 = call i32 @puts(i8* %x) nounwind ; <i32> [#uses=0]
br label %if.end
if.end: ; preds = %if.else16, %if.then14
br label %if.end19
if.end19: ; preds = %if.end, %if.then9
br label %if.end20
if.end20: ; preds = %if.end19, %if.then2
br label %if.end21
if.end21: ; preds = %if.end20, %if.then
ret void
}
; Is it useful to test a version where the ptrtoints are to the same
; size?
define void @f_as1(i8 addrspace(1)* %x) nounwind ssp {
; CHECK-LABEL: @f_as1(
; CHECK: ptrtoint i8 addrspace(1)* %x to i16
; CHECK: switch i16 %magicptr
; CHECK: i16 0, label
; CHECK: i16 1, label
; CHECK: i16 2, label
; CHECK: i16 3, label
; CHECK: i16 4, label
; CHECK: }
entry:
%tobool = icmp eq i8 addrspace(1)* %x, null ; <i1> [#uses=1]
br i1 %tobool, label %if.then, label %if.else
if.then: ; preds = %entry
%call = call i32 @puts_as1(i8 addrspace(1)* getelementptr inbounds ([5 x i8], [5 x i8] addrspace(1)* @.str_as1, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end21
if.else: ; preds = %entry
%cmp = icmp eq i8 addrspace(1)* %x, inttoptr (i64 1 to i8 addrspace(1)*) ; <i1> [#uses=1]
br i1 %cmp, label %if.then2, label %if.else4
if.then2: ; preds = %if.else
%call3 = call i32 @puts_as1(i8 addrspace(1)* getelementptr inbounds ([4 x i8], [4 x i8] addrspace(1)* @.str1_as1, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end20
if.else4: ; preds = %if.else
%cmp6 = icmp eq i8 addrspace(1)* %x, inttoptr (i64 2 to i8 addrspace(1)*) ; <i1> [#uses=1]
br i1 %cmp6, label %if.then9, label %lor.lhs.false
lor.lhs.false: ; preds = %if.else4
%cmp8 = icmp eq i8 addrspace(1)* %x, inttoptr (i64 3 to i8 addrspace(1)*) ; <i1> [#uses=1]
br i1 %cmp8, label %if.then9, label %if.else11
if.then9: ; preds = %lor.lhs.false, %if.else4
%call10 = call i32 @puts_as1(i8 addrspace(1)* getelementptr inbounds ([4 x i8], [4 x i8] addrspace(1)* @.str2_as1, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end19
if.else11: ; preds = %lor.lhs.false
%cmp13 = icmp eq i8 addrspace(1)* %x, inttoptr (i64 4 to i8 addrspace(1)*) ; <i1> [#uses=1]
br i1 %cmp13, label %if.then14, label %if.else16
if.then14: ; preds = %if.else11
%call15 = call i32 @puts_as1(i8 addrspace(1)* getelementptr inbounds ([5 x i8], [5 x i8] addrspace(1)* @.str3_as1, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
br label %if.end
if.else16: ; preds = %if.else11
%call18 = call i32 @puts_as1(i8 addrspace(1)* %x) nounwind ; <i32> [#uses=0]
br label %if.end
if.end: ; preds = %if.else16, %if.then14
br label %if.end19
if.end19: ; preds = %if.end, %if.then9
br label %if.end20
if.end20: ; preds = %if.end19, %if.then2
br label %if.end21
if.end21: ; preds = %if.end20, %if.then
ret void
}