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| author | Craig Topper <craig.topper@gmail.com> | 2016-04-24 04:38:34 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2016-04-24 04:38:34 +0000 |
| commit | e78eac1d31e9e1195c9d4ec471672123764dbc72 (patch) | |
| tree | 9303de30f197b2c09e7b89b012f15e5551631792 /llvm/lib/Target | |
| parent | 36c133159a1cdce2dccd71ba088a02a0c12e4091 (diff) | |
| download | bcm5719-llvm-e78eac1d31e9e1195c9d4ec471672123764dbc72.tar.gz bcm5719-llvm-e78eac1d31e9e1195c9d4ec471672123764dbc72.zip | |
[X86] Remove isel patterns for selecting tzcnt/lzcnt from cmove/ne+cttz/ctlz. These are folded by DAG combine now.
llvm-svn: 267326
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.td | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td index 4504a165a4d..c283d88378d 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.td +++ b/llvm/lib/Target/X86/X86InstrInfo.td @@ -2165,46 +2165,6 @@ let Predicates = [HasLZCNT], Defs = [EFLAGS] in { (implicit EFLAGS)]>, XS; } -let Predicates = [HasLZCNT] in { - def : Pat<(X86cmov (ctlz GR16:$src), (i16 16), (X86_COND_E), - (X86cmp GR16:$src, (i16 0))), - (LZCNT16rr GR16:$src)>; - def : Pat<(X86cmov (ctlz GR32:$src), (i32 32), (X86_COND_E), - (X86cmp GR32:$src, (i32 0))), - (LZCNT32rr GR32:$src)>; - def : Pat<(X86cmov (ctlz GR64:$src), (i64 64), (X86_COND_E), - (X86cmp GR64:$src, (i64 0))), - (LZCNT64rr GR64:$src)>; - def : Pat<(X86cmov (i16 16), (ctlz GR16:$src), (X86_COND_NE), - (X86cmp GR16:$src, (i16 0))), - (LZCNT16rr GR16:$src)>; - def : Pat<(X86cmov (i32 32), (ctlz GR32:$src), (X86_COND_NE), - (X86cmp GR32:$src, (i32 0))), - (LZCNT32rr GR32:$src)>; - def : Pat<(X86cmov (i64 64), (ctlz GR64:$src), (X86_COND_NE), - (X86cmp GR64:$src, (i64 0))), - (LZCNT64rr GR64:$src)>; - - def : Pat<(X86cmov (ctlz (loadi16 addr:$src)), (i16 16), (X86_COND_E), - (X86cmp (loadi16 addr:$src), (i16 0))), - (LZCNT16rm addr:$src)>; - def : Pat<(X86cmov (ctlz (loadi32 addr:$src)), (i32 32), (X86_COND_E), - (X86cmp (loadi32 addr:$src), (i32 0))), - (LZCNT32rm addr:$src)>; - def : Pat<(X86cmov (ctlz (loadi64 addr:$src)), (i64 64), (X86_COND_E), - (X86cmp (loadi64 addr:$src), (i64 0))), - (LZCNT64rm addr:$src)>; - def : Pat<(X86cmov (i16 16), (ctlz (loadi16 addr:$src)), (X86_COND_NE), - (X86cmp (loadi16 addr:$src), (i16 0))), - (LZCNT16rm addr:$src)>; - def : Pat<(X86cmov (i32 32), (ctlz (loadi32 addr:$src)), (X86_COND_NE), - (X86cmp (loadi32 addr:$src), (i32 0))), - (LZCNT32rm addr:$src)>; - def : Pat<(X86cmov (i64 64), (ctlz (loadi64 addr:$src)), (X86_COND_NE), - (X86cmp (loadi64 addr:$src), (i64 0))), - (LZCNT64rm addr:$src)>; -} - //===----------------------------------------------------------------------===// // BMI Instructions // @@ -2281,46 +2241,6 @@ let Predicates = [HasBMI] in { (BLSI64rr GR64:$src)>; } -let Predicates = [HasBMI] in { - def : Pat<(X86cmov (cttz GR16:$src), (i16 16), (X86_COND_E), - (X86cmp GR16:$src, (i16 0))), - (TZCNT16rr GR16:$src)>; - def : Pat<(X86cmov (cttz GR32:$src), (i32 32), (X86_COND_E), - (X86cmp GR32:$src, (i32 0))), - (TZCNT32rr GR32:$src)>; - def : Pat<(X86cmov (cttz GR64:$src), (i64 64), (X86_COND_E), - (X86cmp GR64:$src, (i64 0))), - (TZCNT64rr GR64:$src)>; - def : Pat<(X86cmov (i16 16), (cttz GR16:$src), (X86_COND_NE), - (X86cmp GR16:$src, (i16 0))), - (TZCNT16rr GR16:$src)>; - def : Pat<(X86cmov (i32 32), (cttz GR32:$src), (X86_COND_NE), - (X86cmp GR32:$src, (i32 0))), - (TZCNT32rr GR32:$src)>; - def : Pat<(X86cmov (i64 64), (cttz GR64:$src), (X86_COND_NE), - (X86cmp GR64:$src, (i64 0))), - (TZCNT64rr GR64:$src)>; - - def : Pat<(X86cmov (cttz (loadi16 addr:$src)), (i16 16), (X86_COND_E), - (X86cmp (loadi16 addr:$src), (i16 0))), - (TZCNT16rm addr:$src)>; - def : Pat<(X86cmov (cttz (loadi32 addr:$src)), (i32 32), (X86_COND_E), - (X86cmp (loadi32 addr:$src), (i32 0))), - (TZCNT32rm addr:$src)>; - def : Pat<(X86cmov (cttz (loadi64 addr:$src)), (i64 64), (X86_COND_E), - (X86cmp (loadi64 addr:$src), (i64 0))), - (TZCNT64rm addr:$src)>; - def : Pat<(X86cmov (i16 16), (cttz (loadi16 addr:$src)), (X86_COND_NE), - (X86cmp (loadi16 addr:$src), (i16 0))), - (TZCNT16rm addr:$src)>; - def : Pat<(X86cmov (i32 32), (cttz (loadi32 addr:$src)), (X86_COND_NE), - (X86cmp (loadi32 addr:$src), (i32 0))), - (TZCNT32rm addr:$src)>; - def : Pat<(X86cmov (i64 64), (cttz (loadi64 addr:$src)), (X86_COND_NE), - (X86cmp (loadi64 addr:$src), (i64 0))), - (TZCNT64rm addr:$src)>; -} - multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC, X86MemOperand x86memop, Intrinsic Int, |
