llvm-6502/test/Transforms/LoopStrengthReduce/2009-04-28-no-reduce-mul.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

49 lines
1.9 KiB
LLVM

; RUN: opt < %s -loop-reduce -S | FileCheck %s
; The multiply in bb2 must not be reduced to an add, as the sext causes the
; %1 argument to become negative after a while.
; CHECK: sext i8
; CHECK: mul i32
; CHECK: store i32
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"
target triple = "i386-apple-darwin9.6"
@table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2]
define i32 @main() nounwind {
bb4.thread:
br label %bb2
bb2: ; preds = %bb4, %bb2, %bb4.thread
%i.0.reg2mem.0.ph = phi i32 [ 0, %bb4.thread ], [ %i.0.reg2mem.0.ph, %bb2 ], [ %indvar.next9, %bb4 ] ; <i32> [#uses=4]
%j.0.reg2mem.0 = phi i32 [ 0, %bb4.thread ], [ %indvar.next, %bb2 ], [ 0, %bb4 ] ; <i32> [#uses=3]
%0 = trunc i32 %j.0.reg2mem.0 to i8 ; <i8> [#uses=1]
%1 = sext i8 %0 to i32 ; <i32> [#uses=1]
%2 = mul i32 %1, %i.0.reg2mem.0.ph ; <i32> [#uses=1]
%3 = getelementptr [32 x [256 x i32]], [32 x [256 x i32]]* @table, i32 0, i32 %i.0.reg2mem.0.ph, i32 %j.0.reg2mem.0 ; <i32*> [#uses=1]
store i32 %2, i32* %3, align 4
%indvar.next = add i32 %j.0.reg2mem.0, 1 ; <i32> [#uses=2]
%exitcond = icmp eq i32 %indvar.next, 256 ; <i1> [#uses=1]
br i1 %exitcond, label %bb4, label %bb2
bb4: ; preds = %bb2
%indvar.next9 = add i32 %i.0.reg2mem.0.ph, 1 ; <i32> [#uses=2]
%exitcond10 = icmp eq i32 %indvar.next9, 32 ; <i1> [#uses=1]
br i1 %exitcond10, label %bb5, label %bb2
bb5: ; preds = %bb4
%4 = load i32, i32* getelementptr ([32 x [256 x i32]], [32 x [256 x i32]]* @table, i32 0, i32 9, i32 132), align 16 ; <i32> [#uses=1]
%5 = icmp eq i32 %4, -1116 ; <i1> [#uses=1]
br i1 %5, label %bb7, label %bb6
bb6: ; preds = %bb5
tail call void @abort() noreturn nounwind
unreachable
bb7: ; preds = %bb5
ret i32 0
}
declare void @abort() noreturn nounwind