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44 lines
1.5 KiB
LLVM
44 lines
1.5 KiB
LLVM
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; RUN: llc < %s -verify-coalescing
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; PR10046
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;
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; PHI elimination splits the critical edge from %while.end415 to %if.end427.
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; This requires updating the BNE-J terminators to a BEQ. The BNE instruction
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; kills a virtual register, and LiveVariables must be updated with the new kill
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; instruction.
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target datalayout = "E-p:32:32:32-i1:8:8-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-n32"
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target triple = "mips-ellcc-linux"
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define i32 @mergesort(i8* %base, i32 %nmemb, i32 %size, i32 (i8*, i8*)* nocapture %cmp) nounwind {
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entry:
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br i1 undef, label %return, label %if.end13
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if.end13: ; preds = %entry
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br label %while.body
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while.body: ; preds = %while.body, %if.end13
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%list1.0482 = phi i8* [ %base, %if.end13 ], [ null, %while.body ]
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br i1 undef, label %while.end415, label %while.body
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while.end415: ; preds = %while.body
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br i1 undef, label %if.then419, label %if.end427
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if.then419: ; preds = %while.end415
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%call425 = tail call i8* @memmove(i8* %list1.0482, i8* undef, i32 undef) nounwind
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br label %if.end427
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if.end427: ; preds = %if.then419, %while.end415
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%list2.1 = phi i8* [ undef, %if.then419 ], [ %list1.0482, %while.end415 ]
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tail call void @free(i8* %list2.1)
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unreachable
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return: ; preds = %entry
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ret i32 -1
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}
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declare i8* @memmove(i8*, i8*, i32)
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declare void @free(i8*)
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