Date: Tue, 6 Nov 2012 07:46:07 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r242657 - stable/9/contrib/llvm/lib/Target/X86 Message-ID: <201211060746.qA67k7JU011870@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: dim Date: Tue Nov 6 07:46:07 2012 New Revision: 242657 URL: http://svnweb.freebsd.org/changeset/base/242657 Log: MFC r242380: Pull in r165377 from upstream llvm trunk: X86: fcmov doesn't handle all possible EFLAGS, fall back to a branch for the others. Otherwise it will try to use SSE patterns and fail horribly if sse is disabled. Fixes PR14035. This should fix the following assertion failure: Assertion failed: (Reg >= X86::FP0 && Reg <= X86::FP6 && "Expected FP register!"), function getFPReg, file contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp, line 330. which can show up when compiling contrib/compiler-rt, using -march=i686 through -march=pentium3 (CPU's which do support fcmov, but don't support SSE2). Modified: stable/9/contrib/llvm/lib/Target/X86/X86InstrCompiler.td Directory Properties: stable/9/contrib/llvm/ (props changed) Modified: stable/9/contrib/llvm/lib/Target/X86/X86InstrCompiler.td ============================================================================== --- stable/9/contrib/llvm/lib/Target/X86/X86InstrCompiler.td Tue Nov 6 06:19:11 2012 (r242656) +++ stable/9/contrib/llvm/lib/Target/X86/X86InstrCompiler.td Tue Nov 6 07:46:07 2012 (r242657) @@ -443,6 +443,11 @@ def CMOV_GR16 : I<0, Pseudo, "#CMOV_GR16* PSEUDO!", [(set GR16:$dst, (X86cmov GR16:$src1, GR16:$src2, imm:$cond, EFLAGS))]>; +} // Predicates = [NoCMov] + +// fcmov doesn't handle all possible EFLAGS, provide a fallback if there is no +// SSE1. +let Predicates = [FPStackf32] in def CMOV_RFP32 : I<0, Pseudo, (outs RFP32:$dst), (ins RFP32:$src1, RFP32:$src2, i8imm:$cond), @@ -450,6 +455,9 @@ def CMOV_RFP32 : I<0, Pseudo, [(set RFP32:$dst, (X86cmov RFP32:$src1, RFP32:$src2, imm:$cond, EFLAGS))]>; +// fcmov doesn't handle all possible EFLAGS, provide a fallback if there is no +// SSE2. +let Predicates = [FPStackf64] in def CMOV_RFP64 : I<0, Pseudo, (outs RFP64:$dst), (ins RFP64:$src1, RFP64:$src2, i8imm:$cond), @@ -464,7 +472,6 @@ def CMOV_RFP80 : I<0, Pseudo, [(set RFP80:$dst, (X86cmov RFP80:$src1, RFP80:$src2, imm:$cond, EFLAGS))]>; -} // Predicates = [NoCMov] } // UsesCustomInserter = 1, Uses = [EFLAGS]
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201211060746.qA67k7JU011870>