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llvm-mirror/test/Transforms/IndVarSimplify/2009-05-24-useafterfree.ll

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Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537
2009-09-11 20:01:28 +02:00
; RUN: opt < %s -indvars
The rewriter may hold references to instructions that are deleted because they are trivially dead. Fix by clearing the rewriter cache before deleting the trivially dead instructions. Also make InsertedExpressions use an AssertingVH to catch these bugs easier. llvm-svn: 72364
2009-05-24 16:23:16 +02:00
; PR4258
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-f80:32:32"
Correct bogus module triple specifications. llvm-svn: 112469
2010-08-30 12:48:29 +02:00
target triple = "i386-pc-linux-gnu"
The rewriter may hold references to instructions that are deleted because they are trivially dead. Fix by clearing the rewriter cache before deleting the trivially dead instructions. Also make InsertedExpressions use an AssertingVH to catch these bugs easier. llvm-svn: 72364
2009-05-24 16:23:16 +02:00
define void @0(i32*, i32*, i32, i32) nounwind {
br i1 false, label %bb.nph1.preheader, label %.outer._crit_edge
bb.nph1.preheader: ; preds = %4
%smax = select i1 false, i32 -1, i32 0 ; <i32> [#uses=1]
%tmp12 = sub i32 0, %smax ; <i32> [#uses=1]
br label %bb.nph1
bb.nph1: ; preds = %.outer, %bb.nph1.preheader
Teach ScalarEvolution how to compute a tripcount for a loop with true or false as its exit condition. These are usually eliminated by SimplifyCFG, but the may be left around during a pass which wishes to preserve the CFG. llvm-svn: 96683
2010-02-19 19:12:07 +01:00
br i1 undef, label %bb.nph3.preheader, label %.outer
The rewriter may hold references to instructions that are deleted because they are trivially dead. Fix by clearing the rewriter cache before deleting the trivially dead instructions. Also make InsertedExpressions use an AssertingVH to catch these bugs easier. llvm-svn: 72364
2009-05-24 16:23:16 +02:00
bb.nph3.preheader: ; preds = %bb.nph1
br label %bb.nph3
bb.nph3: ; preds = %bb.nph3, %bb.nph3.preheader
%indvar7 = phi i32 [ %indvar.next8, %bb.nph3 ], [ 0, %bb.nph3.preheader ] ; <i32> [#uses=3]
%tmp9 = mul i32 %indvar7, -1 ; <i32> [#uses=1]
%tmp13 = add i32 %tmp9, %tmp12 ; <i32> [#uses=1]
%tmp14 = add i32 %tmp13, -2 ; <i32> [#uses=1]
%5 = icmp sgt i32 %tmp14, 0 ; <i1> [#uses=1]
%indvar.next8 = add i32 %indvar7, 1 ; <i32> [#uses=1]
br i1 %5, label %bb.nph3, label %.outer.loopexit
.outer.loopexit: ; preds = %bb.nph3
%indvar7.lcssa = phi i32 [ %indvar7, %bb.nph3 ] ; <i32> [#uses=0]
br label %.outer
.outer: ; preds = %.outer.loopexit, %bb.nph1
Teach ScalarEvolution how to compute a tripcount for a loop with true or false as its exit condition. These are usually eliminated by SimplifyCFG, but the may be left around during a pass which wishes to preserve the CFG. llvm-svn: 96683
2010-02-19 19:12:07 +01:00
br i1 undef, label %bb.nph1, label %.outer._crit_edge.loopexit
The rewriter may hold references to instructions that are deleted because they are trivially dead. Fix by clearing the rewriter cache before deleting the trivially dead instructions. Also make InsertedExpressions use an AssertingVH to catch these bugs easier. llvm-svn: 72364
2009-05-24 16:23:16 +02:00
.outer._crit_edge.loopexit: ; preds = %.outer
br label %.outer._crit_edge
.outer._crit_edge: ; preds = %.outer._crit_edge.loopexit, %4
ret void
}
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