llvm-6502/test/CodeGen/X86/fold-load.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

74 lines
2.2 KiB
LLVM

; RUN: llc < %s -mcpu=generic -march=x86 | FileCheck %s
%struct._obstack_chunk = type { i8*, %struct._obstack_chunk*, [4 x i8] }
%struct.obstack = type { i32, %struct._obstack_chunk*, i8*, i8*, i8*, i32, i32, %struct._obstack_chunk* (...)*, void (...)*, i8*, i8 }
@stmt_obstack = external global %struct.obstack ; <%struct.obstack*> [#uses=1]
; This should just not crash.
define void @test1() nounwind {
entry:
br i1 true, label %cond_true, label %cond_next
cond_true: ; preds = %entry
%new_size.0.i = select i1 false, i32 0, i32 0 ; <i32> [#uses=1]
%tmp.i = load i32, i32* bitcast (i8* getelementptr (%struct.obstack, %struct.obstack* @stmt_obstack, i32 0, i32 10) to i32*) ; <i32> [#uses=1]
%tmp.i.upgrd.1 = trunc i32 %tmp.i to i8 ; <i8> [#uses=1]
%tmp21.i = and i8 %tmp.i.upgrd.1, 1 ; <i8> [#uses=1]
%tmp22.i = icmp eq i8 %tmp21.i, 0 ; <i1> [#uses=1]
br i1 %tmp22.i, label %cond_false30.i, label %cond_true23.i
cond_true23.i: ; preds = %cond_true
ret void
cond_false30.i: ; preds = %cond_true
%tmp35.i = tail call %struct._obstack_chunk* null( i32 %new_size.0.i ) ; <%struct._obstack_chunk*> [#uses=0]
ret void
cond_next: ; preds = %entry
ret void
}
define i32 @test2(i16* %P, i16* %Q) nounwind {
%A = load i16, i16* %P, align 4 ; <i16> [#uses=11]
%C = zext i16 %A to i32 ; <i32> [#uses=1]
%D = and i32 %C, 255 ; <i32> [#uses=1]
br label %L
L:
store i16 %A, i16* %Q
ret i32 %D
; CHECK-LABEL: test2:
; CHECK: movl 4(%esp), %eax
; CHECK-NEXT: movzwl (%eax), %e{{..}}
}
; rdar://10554090
; xor in exit block will be CSE'ed and load will be folded to xor in entry.
define i1 @test3(i32* %P, i32* %Q) nounwind {
; CHECK-LABEL: test3:
; CHECK: movl 8(%esp), %e
; CHECK: movl 4(%esp), %e
; CHECK: xorl (%e
; CHECK: j
entry:
%0 = load i32, i32* %P, align 4
%1 = load i32, i32* %Q, align 4
%2 = xor i32 %0, %1
%3 = and i32 %2, 89947
%4 = icmp eq i32 %3, 0
br i1 %4, label %exit, label %land.end
exit:
%shr.i.i19 = xor i32 %1, %0
%5 = and i32 %shr.i.i19, 3456789123
%6 = icmp eq i32 %5, 0
br label %land.end
land.end:
%7 = phi i1 [ %6, %exit ], [ false, %entry ]
ret i1 %7
}