forked from OSchip/llvm-project
51 lines
1.8 KiB
LLVM
51 lines
1.8 KiB
LLVM
; RUN: opt < %s -indvars -disable-output
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; PR4009
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; PR4038
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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"
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target triple = "i386-pc-linux-gnu"
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define void @safe_bcopy(i8* %to) nounwind {
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entry:
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%cmp11 = icmp ult i8* %to, null ; <i1> [#uses=1]
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br i1 %cmp11, label %loop, label %return
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return: ; preds = %entry
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ret void
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loop: ; preds = %loop, %if.else
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%pn = phi i8* [ %ge, %loop ], [ null, %entry ] ; <i8*> [#uses=1]
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%cp = ptrtoint i8* %to to i32 ; <i32> [#uses=1]
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%su = sub i32 0, %cp ; <i32> [#uses=1]
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%ge = getelementptr i8* %pn, i32 %su ; <i8*> [#uses=2]
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tail call void @bcopy(i8* %ge) nounwind
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br label %loop
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}
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define void @safe_bcopy_4038(i8* %from, i8* %to, i32 %size) nounwind {
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entry:
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br i1 false, label %if.else, label %if.then12
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if.then12: ; preds = %entry
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ret void
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if.else: ; preds = %entry
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%sub.ptr.rhs.cast40 = ptrtoint i8* %from to i32 ; <i32> [#uses=1]
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br label %if.end54
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if.end54: ; preds = %if.end54, %if.else
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%sub.ptr4912.pn = phi i8* [ %sub.ptr4912, %if.end54 ], [ null, %if.else ] ; <i8*> [#uses=1]
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%sub.ptr7 = phi i8* [ %sub.ptr, %if.end54 ], [ null, %if.else ] ; <i8*> [#uses=2]
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%sub.ptr.rhs.cast46.pn = ptrtoint i8* %from to i32 ; <i32> [#uses=1]
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%sub.ptr.lhs.cast45.pn = ptrtoint i8* %to to i32 ; <i32> [#uses=1]
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%sub.ptr.sub47.pn = sub i32 %sub.ptr.rhs.cast46.pn, %sub.ptr.lhs.cast45.pn ; <i32> [#uses=1]
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%sub.ptr4912 = getelementptr i8* %sub.ptr4912.pn, i32 %sub.ptr.sub47.pn ; <i8*> [#uses=2]
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tail call void @bcopy_4038(i8* %sub.ptr4912, i8* %sub.ptr7, i32 0) nounwind
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%sub.ptr = getelementptr i8* %sub.ptr7, i32 %sub.ptr.rhs.cast40 ; <i8*> [#uses=1]
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br label %if.end54
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}
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declare void @bcopy(i8* nocapture) nounwind
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declare void @bcopy_4038(i8*, i8*, i32) nounwind
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