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Test Case for r220872:Do not simplifyLatch for loops where hoisting increments couldresult in extra live range interferance

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220873 91177308-0d34-0410-b5e6-96231b3b80d8
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Yi Jiang
2014-10-29 20:20:33 +00:00
parent a5ca5d9f82
commit 973a76f9ce
1 changed files with 70 additions and 0 deletions
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test/Transforms/LoopRotate/nosimplifylatch.ll Normal file
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; RUN: opt -S < %s -loop-rotate -licm -verify-dom-info -verify-loop-info | FileCheck %s
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios8.0.0"
;CHECK: for.inc:
;CHECK-NEXT: %incdec.ptr.i = getelementptr
; Function Attrs: alwaysinline inlinehint nounwind readonly ssp
define linkonce_odr hidden i64 @_ZNSt3__14findINS_11__wrap_iterIPiEEiEET_S4_S4_RKT0_(i64 %__first.coerce, i64 %__last.coerce, i32* nocapture readonly dereferenceable(4) %__value_) {
entry:
%coerce.val.ip = inttoptr i64 %__first.coerce to i32*
%coerce.val.ip2 = inttoptr i64 %__last.coerce to i32*
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%coerce.val.ip9 = phi i32* [ %incdec.ptr.i, %for.inc ], [ %coerce.val.ip, %entry ]
%lnot.i = icmp eq i32* %coerce.val.ip9, %coerce.val.ip2
br i1 %lnot.i, label %for.end, label %for.body
for.body: ; preds = %for.cond
%0 = load i32* %coerce.val.ip9, align 4
%1 = load i32* %__value_, align 4
%cmp = icmp eq i32 %0, %1
br i1 %cmp, label %for.end, label %for.inc
for.inc: ; preds = %for.body
%incdec.ptr.i = getelementptr inbounds i32* %coerce.val.ip9, i64 1
br label %for.cond
for.end: ; preds = %for.cond, %for.body
%coerce.val.ip9.lcssa = phi i32* [ %coerce.val.ip9, %for.cond ], [ %coerce.val.ip9, %for.body ]
%coerce.val.pi = ptrtoint i32* %coerce.val.ip9.lcssa to i64
ret i64 %coerce.val.pi
}
; RUN: opt -S < %s -loop-rotate -licm -verify-dom-info -verify-loop-info | FileCheck %s
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios8.0.0"
;CHECK: for.inc:
;CHECK-NEXT: %incdec.ptr.i = getelementptr
; Function Attrs: alwaysinline inlinehint nounwind readonly ssp
define linkonce_odr hidden i64 @_ZNSt3__14findINS_11__wrap_iterIPiEEiEET_S4_S4_RKT0_(i64 %__first.coerce, i64 %__last.coerce, i32* nocapture readonly dereferenceable(4) %__value_) {
entry:
%coerce.val.ip = inttoptr i64 %__first.coerce to i32*
%coerce.val.ip2 = inttoptr i64 %__last.coerce to i32*
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%coerce.val.ip9 = phi i32* [ %incdec.ptr.i, %for.inc ], [ %coerce.val.ip, %entry ]
%lnot.i = icmp eq i32* %coerce.val.ip9, %coerce.val.ip2
br i1 %lnot.i, label %for.end, label %for.body
for.body: ; preds = %for.cond
%0 = load i32* %coerce.val.ip9, align 4
%1 = load i32* %__value_, align 4
%cmp = icmp eq i32 %0, %1
br i1 %cmp, label %for.end, label %for.inc
for.inc: ; preds = %for.body
%incdec.ptr.i = getelementptr inbounds i32* %coerce.val.ip9, i64 1
br label %for.cond
for.end: ; preds = %for.cond, %for.body
%coerce.val.ip9.lcssa = phi i32* [ %coerce.val.ip9, %for.cond ], [ %coerce.val.ip9, %for.body ]
%coerce.val.pi = ptrtoint i32* %coerce.val.ip9.lcssa to i64
ret i64 %coerce.val.pi
}