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llvm-mirror/test/Transforms/IPConstantProp/2009-09-24-byval-ptr.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

41 lines
1.4 KiB
LLVM

; RUN: opt < %s -ipsccp -S | FileCheck %s
; Don't constant-propagate byval pointers, since they are not pointers!
; PR5038
%struct.MYstr = type { i8, i32 }
@mystr = internal global %struct.MYstr zeroinitializer ; <%struct.MYstr*> [#uses=3]
define internal void @vfu1(%struct.MYstr* byval align 4 %u) nounwind {
entry:
%0 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 1 ; <i32*> [#uses=1]
store i32 99, i32* %0, align 4
; CHECK: %struct.MYstr* %u
%1 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 0 ; <i8*> [#uses=1]
store i8 97, i8* %1, align 4
; CHECK: %struct.MYstr* %u
br label %return
return: ; preds = %entry
ret void
}
define internal i32 @vfu2(%struct.MYstr* byval align 4 %u) nounwind readonly {
entry:
%0 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 1 ; <i32*> [#uses=1]
%1 = load i32, i32* %0
; CHECK: load i32, i32* getelementptr inbounds (%struct.MYstr, %struct.MYstr* @mystr, i32 0, i32 1)
%2 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 0 ; <i8*> [#uses=1]
%3 = load i8, i8* %2
; CHECK: load i8, i8* getelementptr inbounds (%struct.MYstr, %struct.MYstr* @mystr, i32 0, i32 0)
%4 = zext i8 %3 to i32
%5 = add i32 %4, %1
ret i32 %5
}
define i32 @unions() nounwind {
entry:
call void @vfu1(%struct.MYstr* byval align 4 @mystr) nounwind
%result = call i32 @vfu2(%struct.MYstr* byval align 4 @mystr) nounwind
ret i32 %result
}