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New testcase that crashes the pattern isel

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21800 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-05-09 03:36:11 +00:00
parent cb9048a6e8
commit 49b8b70008
1 changed files with 49 additions and 0 deletions
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49
test/CodeGen/X86/2005-05-08-FPStackifierPHI.ll Normal file
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; RUN: llvm-as < %s | llc -march=x86
; Make sure LLC doesn't crash in the stackifier due to FP PHI nodes.
void %radfg_() {
entry:
br bool false, label %no_exit.16.preheader, label %loopentry.0
loopentry.0: ; preds = %entry
ret void
no_exit.16.preheader: ; preds = %entry
br label %no_exit.16
no_exit.16: ; preds = %no_exit.16, %no_exit.16.preheader
br bool false, label %loopexit.16.loopexit, label %no_exit.16
loopexit.16.loopexit: ; preds = %no_exit.16
br label %no_exit.18
no_exit.18: ; preds = %loopexit.20, %loopexit.16.loopexit
%tmp.882 = add float 0.000000e+00, 0.000000e+00 ; <float> [#uses=2]
br bool false, label %loopexit.19, label %no_exit.19.preheader
no_exit.19.preheader: ; preds = %no_exit.18
ret void
loopexit.19: ; preds = %no_exit.18
br bool false, label %loopexit.20, label %no_exit.20
no_exit.20: ; preds = %loopexit.21, %loopexit.19
%ai2.1122.tmp.3 = phi float [ %tmp.958, %loopexit.21 ], [ %tmp.882, %loopexit.19 ] ; <float> [#uses=1]
%tmp.950 = mul float %tmp.882, %ai2.1122.tmp.3 ; <float> [#uses=1]
%tmp.951 = sub float 0.000000e+00, %tmp.950 ; <float> [#uses=1]
%tmp.958 = add float 0.000000e+00, 0.000000e+00 ; <float> [#uses=1]
br bool false, label %loopexit.21, label %no_exit.21.preheader
no_exit.21.preheader: ; preds = %no_exit.20
ret void
loopexit.21: ; preds = %no_exit.20
br bool false, label %loopexit.20, label %no_exit.20
loopexit.20: ; preds = %loopexit.21, %loopexit.19
%ar2.1124.tmp.2 = phi float [ 0.000000e+00, %loopexit.19 ], [ %tmp.951, %loopexit.21 ] ; <float> [#uses=0]
br bool false, label %loopexit.18.loopexit, label %no_exit.18
loopexit.18.loopexit: ; preds = %loopexit.20
ret void
}