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