From b22da2a72c51066a73134e0e5ff48877bd8d88c6 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Sat, 21 May 2011 18:32:01 +0000 Subject: [PATCH] X86: smulo -> add is now done target-independently in DAGCombiner, remove the patterns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131801 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86InstrCompiler.td | 6 ------ 1 file changed, 6 deletions(-) diff --git a/lib/Target/X86/X86InstrCompiler.td b/lib/Target/X86/X86InstrCompiler.td index 0c70a0f9679..33534cd82bd 100644 --- a/lib/Target/X86/X86InstrCompiler.td +++ b/lib/Target/X86/X86InstrCompiler.td @@ -1524,12 +1524,6 @@ def : Pat<(mul (loadi16 addr:$src1), i16immSExt8:$src2), def : Pat<(mul (loadi32 addr:$src1), i32immSExt8:$src2), (IMUL32rmi8 addr:$src1, i32immSExt8:$src2)>; -// Optimize multiply by 2 with EFLAGS result. -let AddedComplexity = 2 in { -def : Pat<(X86smul_flag GR16:$src1, 2), (ADD16rr GR16:$src1, GR16:$src1)>; -def : Pat<(X86smul_flag GR32:$src1, 2), (ADD32rr GR32:$src1, GR32:$src1)>; -} - // Patterns for nodes that do not produce flags, for instructions that do. // addition