llvm-6502/test/Transforms/LoopStrengthReduce/count-to-zero.ll
Mehdi Amini c94da20917 Make DataLayout Non-Optional in the Module
Summary:
DataLayout keeps the string used for its creation.

As a side effect it is no longer needed in the Module.
This is "almost" NFC, the string is no longer
canonicalized, you can't rely on two "equals" DataLayout
having the same string returned by getStringRepresentation().

Get rid of DataLayoutPass: the DataLayout is in the Module

The DataLayout is "per-module", let's enforce this by not
duplicating it more than necessary.
One more step toward non-optionality of the DataLayout in the
module.

Make DataLayout Non-Optional in the Module

Module->getDataLayout() will never returns nullptr anymore.

Reviewers: echristo

Subscribers: resistor, llvm-commits, jholewinski

Differential Revision: http://reviews.llvm.org/D7992

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231270 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-04 18:43:29 +00:00

46 lines
1.7 KiB
LLVM

; RUN: opt < %s -loop-reduce -S | FileCheck %s
; rdar://7382068
; Provide legal integer types.
target datalayout = "n8:16:32:64"
define void @t(i32 %c) nounwind optsize {
entry:
br label %bb6
bb1: ; preds = %bb6
%tmp = icmp eq i32 %c_addr.1, 20 ; <i1> [#uses=1]
br i1 %tmp, label %bb2, label %bb3
bb2: ; preds = %bb1
%tmp1 = tail call i32 @f20(i32 %c_addr.1) nounwind ; <i32> [#uses=1]
br label %bb7
bb3: ; preds = %bb1
%tmp2 = icmp slt i32 %c_addr.1, 10 ; <i1> [#uses=1]
%tmp3 = add nsw i32 %c_addr.1, 1 ; <i32> [#uses=1]
%tmp4 = add i32 %c_addr.1, -1 ; <i32> [#uses=1]
%c_addr.1.be = select i1 %tmp2, i32 %tmp3, i32 %tmp4 ; <i32> [#uses=1]
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
; CHECK: add nsw i32 %lsr.iv, -1
br label %bb6
bb6: ; preds = %bb3, %entry
%indvar = phi i32 [ %indvar.next, %bb3 ], [ 0, %entry ] ; <i32> [#uses=2]
%c_addr.1 = phi i32 [ %c_addr.1.be, %bb3 ], [ %c, %entry ] ; <i32> [#uses=7]
%tmp5 = icmp eq i32 %indvar, 9999 ; <i1> [#uses=1]
; CHECK: icmp eq i32 %lsr.iv, 0
%tmp6 = icmp eq i32 %c_addr.1, 100 ; <i1> [#uses=1]
%or.cond = or i1 %tmp5, %tmp6 ; <i1> [#uses=1]
br i1 %or.cond, label %bb7, label %bb1
bb7: ; preds = %bb6, %bb2
%c_addr.0 = phi i32 [ %tmp1, %bb2 ], [ %c_addr.1, %bb6 ] ; <i32> [#uses=1]
tail call void @bar(i32 %c_addr.0) nounwind
ret void
}
declare i32 @f20(i32)
declare void @bar(i32)