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Diffstat (limited to 'test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll')
| -rw-r--r-- | test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll b/test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll new file mode 100644 index 0000000..11be694 --- /dev/null +++ b/test/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll @@ -0,0 +1,52 @@ +; RUN: opt < %s -tailduplicate -instcombine -simplifycfg -licm -disable-output +target datalayout = "e-p:32:32" +@yy_base = external global [787 x i16] ; <[787 x i16]*> [#uses=1] +@yy_state_ptr = external global i32* ; <i32**> [#uses=3] +@yy_state_buf = external global [16386 x i32] ; <[16386 x i32]*> [#uses=1] +@yy_lp = external global i32 ; <i32*> [#uses=1] + +define i32 @_yylex() { + br label %loopentry.0 +loopentry.0: ; preds = %else.26, %0 + store i32* getelementptr ([16386 x i32]* @yy_state_buf, i64 0, i64 0), i32** @yy_state_ptr + %tmp.35 = load i32** @yy_state_ptr ; <i32*> [#uses=2] + %inc.0 = getelementptr i32* %tmp.35, i64 1 ; <i32*> [#uses=1] + store i32* %inc.0, i32** @yy_state_ptr + %tmp.36 = load i32* null ; <i32> [#uses=1] + store i32 %tmp.36, i32* %tmp.35 + br label %loopexit.2 +loopexit.2: ; preds = %else.26, %loopexit.2, %loopentry.0 + store i8* null, i8** null + %tmp.91 = load i32* null ; <i32> [#uses=1] + %tmp.92 = sext i32 %tmp.91 to i64 ; <i64> [#uses=1] + %tmp.93 = getelementptr [787 x i16]* @yy_base, i64 0, i64 %tmp.92 ; <i16*> [#uses=1] + %tmp.94 = load i16* %tmp.93 ; <i16> [#uses=1] + %tmp.95 = icmp ne i16 %tmp.94, 4394 ; <i1> [#uses=1] + br i1 %tmp.95, label %loopexit.2, label %yy_find_action +yy_find_action: ; preds = %else.26, %loopexit.2 + br label %loopentry.3 +loopentry.3: ; preds = %then.9, %shortcirc_done.0, %yy_find_action + %tmp.105 = load i32* @yy_lp ; <i32> [#uses=1] + %tmp.106 = icmp ne i32 %tmp.105, 0 ; <i1> [#uses=1] + br i1 %tmp.106, label %shortcirc_next.0, label %shortcirc_done.0 +shortcirc_next.0: ; preds = %loopentry.3 + %tmp.114 = load i16* null ; <i16> [#uses=1] + %tmp.115 = sext i16 %tmp.114 to i32 ; <i32> [#uses=1] + %tmp.116 = icmp slt i32 0, %tmp.115 ; <i1> [#uses=1] + br label %shortcirc_done.0 +shortcirc_done.0: ; preds = %shortcirc_next.0, %loopentry.3 + %shortcirc_val.0 = phi i1 [ false, %loopentry.3 ], [ %tmp.116, %shortcirc_next.0 ] ; <i1> [#uses=1] + br i1 %shortcirc_val.0, label %else.0, label %loopentry.3 +else.0: ; preds = %shortcirc_done.0 + %tmp.144 = load i32* null ; <i32> [#uses=1] + %tmp.145 = and i32 %tmp.144, 8192 ; <i32> [#uses=1] + %tmp.146 = icmp ne i32 %tmp.145, 0 ; <i1> [#uses=1] + br i1 %tmp.146, label %then.9, label %else.26 +then.9: ; preds = %else.0 + br label %loopentry.3 +else.26: ; preds = %else.0 + switch i32 0, label %loopentry.0 [ + i32 2, label %yy_find_action + i32 0, label %loopexit.2 + ] +} |