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Fix bug in X86 folding / unfolding table. Int_CMPSDrm and Int_CMPSSrm memory

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operands starts at index 2, not 1.
rdar://9045024
PR9305

llvm-svn: 126359
This commit is contained in:
Evan Cheng 2011-02-24 02:36:52 +00:00
parent 0f1be641db
commit 9db7b1367d
2 changed files with 44 additions and 2 deletions
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4
lib/Target/X86/X86InstrInfo.cpp
View File

@ -369,8 +369,6 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
{ X86::IMUL32rri8, X86::IMUL32rmi8, 0 },
{ X86::IMUL64rri32, X86::IMUL64rmi32, 0 },
{ X86::IMUL64rri8, X86::IMUL64rmi8, 0 },
{ X86::Int_CMPSDrr, X86::Int_CMPSDrm, 0 },
{ X86::Int_CMPSSrr, X86::Int_CMPSSrm, 0 },
{ X86::Int_COMISDrr, X86::Int_COMISDrm, 0 },
{ X86::Int_COMISSrr, X86::Int_COMISSrm, 0 },
{ X86::Int_CVTDQ2PDrr, X86::Int_CVTDQ2PDrm, 16 },
@ -568,6 +566,8 @@ X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
{ X86::IMUL16rr, X86::IMUL16rm, 0 },
{ X86::IMUL32rr, X86::IMUL32rm, 0 },
{ X86::IMUL64rr, X86::IMUL64rm, 0 },
{ X86::Int_CMPSDrr, X86::Int_CMPSDrm, 0 },
{ X86::Int_CMPSSrr, X86::Int_CMPSSrm, 0 },
{ X86::MAXPDrr, X86::MAXPDrm, 16 },
{ X86::MAXPDrr_Int, X86::MAXPDrm_Int, 16 },
{ X86::MAXPSrr, X86::MAXPSrm, 16 },

42
test/CodeGen/X86/2011-02-23-UnfoldBug.ll Normal file
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@ -0,0 +1,42 @@
; RUN: llc < %s -mtriple=x86_64-apple-darwin10
; rdar://9045024
; PR9305
define void @calc_gb_rad_still_sse2_double() nounwind ssp {
entry:
br label %for.cond.outer
for.cond.outer: ; preds = %if.end71, %entry
%theta.0.ph = phi <2 x double> [ undef, %entry ], [ %theta.1, %if.end71 ]
%mul.i97 = fmul <2 x double> %theta.0.ph, undef
%mul.i96 = fmul <2 x double> %mul.i97, fmul (<2 x double> <double 2.000000e+00, double 2.000000e+00>, <2 x double> undef)
br i1 undef, label %for.body, label %for.end82
for.body: ; preds = %for.cond.outer
br i1 undef, label %for.body33.lr.ph, label %for.end
for.body33.lr.ph: ; preds = %for.body
%dccf.2 = select i1 undef, <2 x double> %mul.i96, <2 x double> undef
unreachable
for.end: ; preds = %for.body
%vecins.i94 = insertelement <2 x double> undef, double 0.000000e+00, i32 0
%cmpsd.i = tail call <2 x double> @llvm.x86.sse2.cmp.sd(<2 x double> %vecins.i94, <2 x double> <double 0x3FE984B204153B34, double 0x3FE984B204153B34>, i8 2) nounwind
tail call void (...)* @_mm_movemask_pd(<2 x double> %cmpsd.i) nounwind
br i1 undef, label %if.then67, label %if.end71
if.then67: ; preds = %for.end
%vecins.i91 = insertelement <2 x double> %vecins.i94, double undef, i32 0
br label %if.end71
if.end71: ; preds = %if.then67, %for.end
%theta.1 = phi <2 x double> [ %vecins.i91, %if.then67 ], [ %theta.0.ph, %for.end ]
br label %for.cond.outer
for.end82: ; preds = %for.cond.outer
ret void
}
declare void @_mm_movemask_pd(...)
declare <2 x double> @llvm.x86.sse2.cmp.sd(<2 x double>, <2 x double>, i8) nounwind readnone