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New testcases for PR1179/PR1232.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34895 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-03-04 00:54:06 +00:00
parent 12cabda941
commit 2fbdd6ba02
3 changed files with 67 additions and 0 deletions
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28
test/Transforms/IndVarsSimplify/loop_evaluate_2.ll Normal file
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; RUN: llvm-as < %s | opt -indvars -adce -simplifycfg | llvm-dis | grep select &&
; RUN: llvm-as < %s | opt -indvars -adce -simplifycfg | llvm-dis | not grep br
; PR1179
define i32 @ltst(i32 %x) {
entry:
icmp sgt i32 %x, 0 ; <i1>:0 [#uses=1]
br i1 %0, label %bb.preheader, label %bb8
bb.preheader: ; preds = %entry
br label %bb
bb: ; preds = %bb, %bb.preheader
%i.01.0 = phi i32 [ %tmp4, %bb ], [ 0, %bb.preheader ] ; <i32> [#uses=1]
%j.03.0 = phi i32 [ %tmp2, %bb ], [ 0, %bb.preheader ] ; <i32> [#uses=1]
%tmp4 = add i32 %i.01.0, 1 ; <i32> [#uses=2]
%tmp2 = add i32 %j.03.0, 1 ; <i32> [#uses=2]
icmp slt i32 %tmp4, %x ; <i1>:1 [#uses=1]
br i1 %1, label %bb, label %bb8.loopexit
bb8.loopexit: ; preds = %bb
br label %bb8
bb8: ; preds = %bb8.loopexit, %entry
%j.03.1 = phi i32 [ 0, %entry ], [ %tmp2, %bb8.loopexit ] ; <i32> [#uses=1]
ret i32 %j.03.1
}

19
test/Transforms/IndVarsSimplify/loop_evaluate_3.ll Normal file
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; RUN: llvm-as < %s | opt -indvars | llvm-dis | grep 'ret i32 600000'
; PR1179
define i32 @foo() {
entry:
br label %bb5
bb5: ; preds = %bb5, %entry
%i.01.0 = phi i32 [ 0, %entry ], [ %tmp2, %bb5 ] ; <i32> [#uses=1]
%x.03.0 = phi i32 [ 0, %entry ], [ %tmp4, %bb5 ] ; <i32> [#uses=1]
%tmp2 = add i32 %i.01.0, 3 ; <i32> [#uses=2]
%tmp4 = add i32 %x.03.0, 1 ; <i32> [#uses=2]
icmp slt i32 %tmp4, 200000 ; <i1>:0 [#uses=1]
br i1 %0, label %bb5, label %bb7
bb7: ; preds = %bb5
ret i32 %tmp2
}

20
test/Transforms/IndVarsSimplify/loop_evaluate_4.ll Normal file
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; RUN: llvm-as < %s | opt -indvars | llvm-dis | grep 'ret i32 9900'
; PR1179
define i32 @test4() {
entry:
br label %bb7
bb7: ; preds = %bb7, %entry
%v.01.0 = phi i32 [ 0, %entry ], [ %tmp4, %bb7 ] ; <i32> [#uses=1]
%i.03.0 = phi i32 [ 0, %entry ], [ %tmp6, %bb7 ] ; <i32> [#uses=2]
%tmp2 = shl i32 %i.03.0, 1 ; <i32> [#uses=1]
%tmp4 = add i32 %tmp2, %v.01.0 ; <i32> [#uses=2]
%tmp6 = add i32 %i.03.0, 1 ; <i32> [#uses=2]
icmp slt i32 %tmp6, 100 ; <i1>:0 [#uses=1]
br i1 %0, label %bb7, label %bb9
bb9: ; preds = %bb7
ret i32 %tmp4
}