[llvm-commits] [llvm] r154908 - /llvm/trunk/test/CodeGen/X86/2011-09-14-valcoalesce.ll
Andrew Trick
atrick at apple.com
Mon Apr 16 23:20:43 PDT 2012
Author: atrick
Date: Tue Apr 17 01:20:42 2012
New Revision: 154908
URL: http://llvm.org/viewvc/llvm-project?rev=154908&view=rev
Log:
Test cases that assume layout should use -disable-code-place.
Added:
llvm/trunk/test/CodeGen/X86/2011-09-14-valcoalesce.ll
Added: llvm/trunk/test/CodeGen/X86/2011-09-14-valcoalesce.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2011-09-14-valcoalesce.ll?rev=154908&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/2011-09-14-valcoalesce.ll (added)
+++ llvm/trunk/test/CodeGen/X86/2011-09-14-valcoalesce.ll Tue Apr 17 01:20:42 2012
@@ -0,0 +1,174 @@
+; RUN: llc < %s -march=x86 -disable-code-place | FileCheck %s
+;
+; Test RegistersDefinedFromSameValue. We have multiple copies of the same vreg:
+; while.body85.i:
+; vreg1 = copy vreg2
+; vreg2 = add
+; critical edge from land.lhs.true.i -> if.end117.i:
+; vreg27 = vreg2
+; critical edge from land.lhs.true103.i -> if.end117.i:
+; vreg27 = vreg2
+; if.then108.i:
+; vreg27 = vreg1
+;
+; Prior to fixing PR10920 401.bzip miscompile, the coalescer would
+; consider vreg1 and vreg27 to be copies of the same value. It would
+; then remove one of the critical edge copes, which cannot safely be removed.
+;
+; CHECK: # %while.body85.i
+; CHECK-NOT: # %
+; CHECK-NOT: add
+; CHECK: movl %[[POSTR:e[abcdxi]+]], %[[PRER:e[abcdxi]+]]
+; CHECK: addl %{{.*}}, %[[POSTR]]
+; CHECK: # %while.end.i
+; CHECK: movl %[[POSTR]], %[[USER:e[abcdxi]+]]
+; CHECK: # %land.lhs.true.i
+; CHECK: movl %[[POSTR]], %[[USER]]
+; CHECK: # %land.lhs.true103.i
+; CHECK: movl %[[POSTR]], %[[USER]]
+; CHECK: # %if.then108.i
+; [[PRER] live out, so nothing on this path should define it.
+; CHECK-NOT: , %[[PRER]]
+; CHECK: # %if.end117.i
+
+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-f80:128:128-n8:16:32"
+
+ at .str3 = external unnamed_addr constant [59 x i8], align 1
+
+define void @BZ2_compressBlock() nounwind ssp {
+entry:
+ br i1 undef, label %if.then68, label %if.end85
+
+if.then68: ; preds = %entry
+ br label %for.body.i.i
+
+for.body.i.i: ; preds = %for.inc.i.i, %if.then68
+ br i1 undef, label %for.inc.i.i, label %if.then.i.i
+
+if.then.i.i: ; preds = %for.body.i.i
+ br label %for.inc.i.i
+
+for.inc.i.i: ; preds = %if.then.i.i, %for.body.i.i
+ br i1 undef, label %makeMaps_e.exit.i, label %for.body.i.i
+
+makeMaps_e.exit.i: ; preds = %for.inc.i.i
+ br i1 undef, label %for.cond19.preheader.i, label %for.cond.for.cond19.preheader_crit_edge.i
+
+for.cond.for.cond19.preheader_crit_edge.i: ; preds = %makeMaps_e.exit.i
+ unreachable
+
+for.cond19.preheader.i: ; preds = %makeMaps_e.exit.i
+ br i1 undef, label %for.body25.lr.ph.i, label %for.cond33.preheader.i
+
+for.body25.lr.ph.i: ; preds = %for.cond19.preheader.i
+ br label %for.body25.i
+
+for.cond33.preheader.i: ; preds = %for.body25.i, %for.cond19.preheader.i
+ br i1 undef, label %if.then.i, label %if.end.i
+
+for.body25.i: ; preds = %for.body25.i, %for.body25.lr.ph.i
+ br i1 undef, label %for.body25.i, label %for.cond33.preheader.i
+
+if.then.i: ; preds = %for.cond33.preheader.i
+ br label %if.end.i
+
+if.end.i: ; preds = %if.then.i, %for.cond33.preheader.i
+ br i1 undef, label %for.inc27.us.5.i, label %for.end30.i
+
+for.end30.i: ; preds = %for.inc27.us.5.i, %if.end.i
+ br i1 undef, label %if.end36.i, label %if.then35.i
+
+if.then35.i: ; preds = %for.end30.i
+ unreachable
+
+if.end36.i: ; preds = %for.end30.i
+ %sub83.i = add nsw i32 undef, 1
+ br label %while.body.i188
+
+for.cond182.preheader.i: ; preds = %for.end173.i
+ br i1 undef, label %for.inc220.us.i, label %while.body300.preheader.i
+
+while.body.i188: ; preds = %for.end173.i, %if.end36.i
+ %gs.0526.i = phi i32 [ 0, %if.end36.i ], [ %add177.i, %for.end173.i ]
+ %or.cond514517.i = and i1 false, undef
+ br i1 %or.cond514517.i, label %while.body85.i, label %if.end117.i
+
+while.body85.i: ; preds = %while.body85.i, %while.body.i188
+ %aFreq.0518.i = phi i32 [ %add93.i, %while.body85.i ], [ 0, %while.body.i188 ]
+ %inc87.i = add nsw i32 0, 1
+ %tmp91.i = load i32* undef, align 4, !tbaa !0
+ %add93.i = add nsw i32 %tmp91.i, %aFreq.0518.i
+ %or.cond514.i = and i1 undef, false
+ br i1 %or.cond514.i, label %while.body85.i, label %while.end.i
+
+while.end.i: ; preds = %while.body85.i
+ br i1 undef, label %land.lhs.true.i, label %if.end117.i
+
+land.lhs.true.i: ; preds = %while.end.i
+ br i1 undef, label %land.lhs.true103.i, label %if.end117.i
+
+land.lhs.true103.i: ; preds = %land.lhs.true.i
+ br i1 undef, label %if.then108.i, label %if.end117.i
+
+if.then108.i: ; preds = %land.lhs.true103.i
+ br label %if.end117.i
+
+if.end117.i: ; preds = %if.then108.i, %land.lhs.true103.i, %land.lhs.true.i, %while.end.i, %while.body.i188
+ %aFreq.1.i = phi i32 [ %aFreq.0518.i, %if.then108.i ], [ %add93.i, %land.lhs.true103.i ], [ %add93.i, %land.lhs.true.i ], [ %add93.i, %while.end.i ], [ 0, %while.body.i188 ]
+ %ge.1.i = phi i32 [ 0, %if.then108.i ], [ %inc87.i, %land.lhs.true103.i ], [ %inc87.i, %land.lhs.true.i ], [ %inc87.i, %while.end.i ], [ 0, %while.body.i188 ]
+ br i1 undef, label %if.then122.i, label %for.cond138.preheader.i
+
+if.then122.i: ; preds = %if.end117.i
+ call void (...)* @fprintf(i32 undef, i32 %gs.0526.i, i32 %ge.1.i, i32 %aFreq.1.i, double undef) nounwind
+ br label %for.cond138.preheader.i
+
+for.cond138.preheader.i: ; preds = %if.then122.i, %if.end117.i
+ br i1 undef, label %for.body143.lr.ph.i, label %for.end173.i
+
+for.body143.lr.ph.i: ; preds = %for.cond138.preheader.i
+ br label %for.body143.i
+
+for.body143.i: ; preds = %for.body143.i, %for.body143.lr.ph.i
+ br i1 undef, label %for.end173.i, label %for.body143.i
+
+for.end173.i: ; preds = %for.body143.i, %for.cond138.preheader.i
+ %add177.i = add nsw i32 %ge.1.i, 1
+ %cmp73.i = icmp sgt i32 undef, 0
+ br i1 %cmp73.i, label %while.body.i188, label %for.cond182.preheader.i
+
+for.inc220.us.i: ; preds = %for.cond182.preheader.i
+ unreachable
+
+while.body300.preheader.i: ; preds = %for.cond182.preheader.i
+ br i1 undef, label %for.end335.i, label %while.end2742.i
+
+for.end335.i: ; preds = %for.end2039.i, %while.body300.preheader.i
+ br label %for.body2021.i
+
+for.body2021.i: ; preds = %for.body2021.i, %for.end335.i
+ br i1 undef, label %for.body2021.i, label %for.end2039.i
+
+for.end2039.i: ; preds = %for.body2021.i
+ br label %for.end335.i
+
+while.end2742.i: ; preds = %while.body300.preheader.i
+ br i1 undef, label %if.then2748.i, label %for.body2778.i
+
+if.then2748.i: ; preds = %while.end2742.i
+ unreachable
+
+for.body2778.i: ; preds = %while.end2742.i
+ unreachable
+
+for.inc27.us.5.i: ; preds = %if.end.i
+ br label %for.end30.i
+
+if.end85: ; preds = %entry
+ ret void
+}
+
+declare void @fprintf(...) nounwind
+
+!0 = metadata !{metadata !"int", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
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