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22b8fb521f
I got confused and assumed SrcIdx/DstIdx of the CoalescerPair is a subregister index in SrcReg/DstReg, but they are actually subregister indices of the coalesced register that get you back to SrcReg/DstReg when applied. Fixed the bug, improved comments and simplified code accordingly. Testcase by Tom Stellard! llvm-svn: 225415
46 lines
2.0 KiB
LLVM
46 lines
2.0 KiB
LLVM
; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs -o - %s
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; ModuleID = 'bugpoint-reduced-simplified.bc'
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target datalayout = "e-p:32:32-p1:64:64-p2:64:64-p3:32:32-p4:64:64-p5:32:32-p24:64:64-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64"
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target triple = "r600--"
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; SI: s_endpgm
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; Function Attrs: nounwind
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define void @row_filter_C1_D0() #0 {
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entry:
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br i1 undef, label %for.inc.1, label %do.body.preheader
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do.body.preheader: ; preds = %entry
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%0 = insertelement <4 x i32> zeroinitializer, i32 undef, i32 1
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br i1 undef, label %do.body56.1, label %do.body90
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do.body90: ; preds = %do.body56.2, %do.body56.1, %do.body.preheader
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%1 = phi <4 x i32> [ %6, %do.body56.2 ], [ %5, %do.body56.1 ], [ %0, %do.body.preheader ]
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%2 = insertelement <4 x i32> %1, i32 undef, i32 2
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%3 = insertelement <4 x i32> %2, i32 undef, i32 3
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br i1 undef, label %do.body124.1, label %do.body.1562.preheader
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do.body.1562.preheader: ; preds = %do.body124.1, %do.body90
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%storemerge = phi <4 x i32> [ %3, %do.body90 ], [ %7, %do.body124.1 ]
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%4 = insertelement <4 x i32> undef, i32 undef, i32 1
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br label %for.inc.1
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do.body56.1: ; preds = %do.body.preheader
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%5 = insertelement <4 x i32> %0, i32 undef, i32 1
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%or.cond472.1 = or i1 undef, undef
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br i1 %or.cond472.1, label %do.body56.2, label %do.body90
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do.body56.2: ; preds = %do.body56.1
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%6 = insertelement <4 x i32> %5, i32 undef, i32 1
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br label %do.body90
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do.body124.1: ; preds = %do.body90
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%7 = insertelement <4 x i32> %3, i32 undef, i32 3
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br label %do.body.1562.preheader
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for.inc.1: ; preds = %do.body.1562.preheader, %entry
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%storemerge591 = phi <4 x i32> [ zeroinitializer, %entry ], [ %storemerge, %do.body.1562.preheader ]
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%add.i495 = add <4 x i32> %storemerge591, undef
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unreachable
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}
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