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https://github.com/c64scene-ar/llvm-6502.git
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f940a1a869
ssa, so it has to be run really early in the pipeline. Any replacement should probably use the SSAUpdater. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138841 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
2.3 KiB
LLVM
53 lines
2.3 KiB
LLVM
; RUN: opt < %s -instcombine -simplifycfg -licm -disable-output
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target datalayout = "e-p:32:32"
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@yy_base = external global [787 x i16] ; <[787 x i16]*> [#uses=1]
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@yy_state_ptr = external global i32* ; <i32**> [#uses=3]
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@yy_state_buf = external global [16386 x i32] ; <[16386 x i32]*> [#uses=1]
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@yy_lp = external global i32 ; <i32*> [#uses=1]
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define i32 @_yylex() {
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br label %loopentry.0
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loopentry.0: ; preds = %else.26, %0
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store i32* getelementptr ([16386 x i32]* @yy_state_buf, i64 0, i64 0), i32** @yy_state_ptr
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%tmp.35 = load i32** @yy_state_ptr ; <i32*> [#uses=2]
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%inc.0 = getelementptr i32* %tmp.35, i64 1 ; <i32*> [#uses=1]
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store i32* %inc.0, i32** @yy_state_ptr
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%tmp.36 = load i32* null ; <i32> [#uses=1]
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store i32 %tmp.36, i32* %tmp.35
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br label %loopexit.2
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loopexit.2: ; preds = %else.26, %loopexit.2, %loopentry.0
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store i8* null, i8** null
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%tmp.91 = load i32* null ; <i32> [#uses=1]
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%tmp.92 = sext i32 %tmp.91 to i64 ; <i64> [#uses=1]
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%tmp.93 = getelementptr [787 x i16]* @yy_base, i64 0, i64 %tmp.92 ; <i16*> [#uses=1]
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%tmp.94 = load i16* %tmp.93 ; <i16> [#uses=1]
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%tmp.95 = icmp ne i16 %tmp.94, 4394 ; <i1> [#uses=1]
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br i1 %tmp.95, label %loopexit.2, label %yy_find_action
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yy_find_action: ; preds = %else.26, %loopexit.2
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br label %loopentry.3
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loopentry.3: ; preds = %then.9, %shortcirc_done.0, %yy_find_action
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%tmp.105 = load i32* @yy_lp ; <i32> [#uses=1]
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%tmp.106 = icmp ne i32 %tmp.105, 0 ; <i1> [#uses=1]
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br i1 %tmp.106, label %shortcirc_next.0, label %shortcirc_done.0
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shortcirc_next.0: ; preds = %loopentry.3
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%tmp.114 = load i16* null ; <i16> [#uses=1]
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%tmp.115 = sext i16 %tmp.114 to i32 ; <i32> [#uses=1]
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%tmp.116 = icmp slt i32 0, %tmp.115 ; <i1> [#uses=1]
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br label %shortcirc_done.0
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shortcirc_done.0: ; preds = %shortcirc_next.0, %loopentry.3
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%shortcirc_val.0 = phi i1 [ false, %loopentry.3 ], [ %tmp.116, %shortcirc_next.0 ] ; <i1> [#uses=1]
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br i1 %shortcirc_val.0, label %else.0, label %loopentry.3
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else.0: ; preds = %shortcirc_done.0
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%tmp.144 = load i32* null ; <i32> [#uses=1]
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%tmp.145 = and i32 %tmp.144, 8192 ; <i32> [#uses=1]
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%tmp.146 = icmp ne i32 %tmp.145, 0 ; <i1> [#uses=1]
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br i1 %tmp.146, label %then.9, label %else.26
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then.9: ; preds = %else.0
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br label %loopentry.3
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else.26: ; preds = %else.0
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switch i32 0, label %loopentry.0 [
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i32 2, label %yy_find_action
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i32 0, label %loopexit.2
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]
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}
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