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Test -simplifycfg only.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45389 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2007-12-28 22:59:48 +00:00
parent a1643ba71a
commit c49c08f747
1 changed files with 22 additions and 45 deletions
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67
test/Transforms/SimplifyCFG/2007-12-21-Crash.ll
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@ -1,58 +1,35 @@
; RUN: llvm-as < %s | opt -std-compile-opts -disable-output
;RUN: llvm-as < %s | opt -simplifycfg -disable-output
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"
define i32 @bork() {
define i32 @bork() nounwind {
entry:
%retval = alloca i32 ; <i32*> [#uses=2]
%opt = alloca i32 ; <i32*> [#uses=3]
%undo = alloca i32 ; <i32*> [#uses=3]
%tmp = alloca i32 ; <i32*> [#uses=3]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i32 0, i32* %undo, align 4
br label %bb5.outer
bb5.outer.loopexit: ; preds = %bb5
br label %bb5.outer
bb5.outer: ; preds = %bb5.outer.loopexit, %entry
%undo.0.ph = phi i32 [ 0, %entry ], [ 1, %bb5.outer.loopexit ] ; <i32> [#uses=1]
br label %bb5
bb: ; preds = %bb5
%tmp1 = load i32* %opt, align 4 ; <i32> [#uses=1]
switch i32 %tmp1, label %bb4 [
i32 102, label %bb3
i32 110, label %bb2
bb5: ; preds = %bb5, %bb5.outer
%tmp6 = tail call i32 (...)* @foo( ) nounwind ; <i32> [#uses=1]
switch i32 %tmp6, label %bb13 [
i32 -1, label %bb10
i32 102, label %bb5
i32 110, label %bb5.outer.loopexit
]
bb2: ; preds = %bb
store i32 1, i32* %undo, align 4
br label %bb3
bb3: ; preds = %bb2, %bb
br label %bb5
bb4: ; preds = %bb
store i32 258, i32* %tmp, align 4
br label %bb13
bb5: ; preds = %bb3, %entry
%tmp6 = call i32 (...)* @foo( ) nounwind ; <i32> [#uses=1]
store i32 %tmp6, i32* %opt, align 4
%tmp7 = load i32* %opt, align 4 ; <i32> [#uses=1]
%tmp8 = icmp ne i32 %tmp7, -1 ; <i1> [#uses=1]
%tmp89 = zext i1 %tmp8 to i8 ; <i8> [#uses=1]
%toBool = icmp ne i8 %tmp89, 0 ; <i1> [#uses=1]
br i1 %toBool, label %bb, label %bb10
bb10: ; preds = %bb5
%tmp11 = load i32* %undo, align 4 ; <i32> [#uses=1]
%tmp12 = call i32 (...)* @bar( i32 %tmp11 ) nounwind ; <i32> [#uses=0]
store i32 1, i32* %tmp, align 4
br label %bb13
%tmp12 = tail call i32 (...)* @bar( i32 %undo.0.ph ) nounwind ; <i32> [#uses=0]
br label %UnifiedReturnBlock
bb13: ; preds = %bb10, %bb4
%tmp14 = load i32* %tmp, align 4 ; <i32> [#uses=1]
store i32 %tmp14, i32* %retval, align 4
br label %return
bb13: ; preds = %bb5
br label %UnifiedReturnBlock
return: ; preds = %bb13
%retval15 = load i32* %retval ; <i32> [#uses=1]
ret i32 %retval15
UnifiedReturnBlock: ; preds = %bb13, %bb10
%UnifiedRetVal = phi i32 [ 1, %bb10 ], [ 258, %bb13 ] ; <i32> [#uses=1]
ret i32 %UnifiedRetVal
}
declare i32 @foo(...)