diff options
Diffstat (limited to 'lib/Target/X86/X86Instr64bit.td')
| -rw-r--r-- | lib/Target/X86/X86Instr64bit.td | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td index 063913f..472ba4c 100644 --- a/lib/Target/X86/X86Instr64bit.td +++ b/lib/Target/X86/X86Instr64bit.td @@ -45,7 +45,8 @@ def lea64_32mem : Operand<i32> { // Complex Pattern Definitions. // def lea64addr : ComplexPattern<i64, 4, "SelectLEAAddr", - [add, mul, X86mul_imm, shl, or, frameindex, X86Wrapper], + [add, mul, X86mul_imm, shl, or, frameindex, X86Wrapper, + X86WrapperRIP], []>; def tls64addr : ComplexPattern<i64, 4, "SelectTLSADDRAddr", @@ -1418,6 +1419,9 @@ def : Pat<(i64 (X86Wrapper tglobaladdr :$dst)), def : Pat<(i64 (X86Wrapper texternalsym:$dst)), (MOV64ri texternalsym:$dst)>, Requires<[NotSmallCode]>; +// If we have small model and -static mode, it is safe to store global addresses +// directly as immediates. FIXME: This is really a hack, the 'imm' predicate +// should handle this sort of thing. def : Pat<(store (i64 (X86Wrapper tconstpool:$src)), addr:$dst), (MOV64mi32 addr:$dst, tconstpool:$src)>, Requires<[SmallCode, IsStatic]>; @@ -1431,6 +1435,23 @@ def : Pat<(store (i64 (X86Wrapper texternalsym:$src)), addr:$dst), (MOV64mi32 addr:$dst, texternalsym:$src)>, Requires<[SmallCode, IsStatic]>; +// If we have small model and -static mode, it is safe to store global addresses +// directly as immediates. FIXME: This is really a hack, the 'imm' predicate +// should handle this sort of thing. +def : Pat<(store (i64 (X86WrapperRIP tconstpool:$src)), addr:$dst), + (MOV64mi32 addr:$dst, tconstpool:$src)>, + Requires<[SmallCode, IsStatic]>; +def : Pat<(store (i64 (X86WrapperRIP tjumptable:$src)), addr:$dst), + (MOV64mi32 addr:$dst, tjumptable:$src)>, + Requires<[SmallCode, IsStatic]>; +def : Pat<(store (i64 (X86WrapperRIP tglobaladdr:$src)), addr:$dst), + (MOV64mi32 addr:$dst, tglobaladdr:$src)>, + Requires<[SmallCode, IsStatic]>; +def : Pat<(store (i64 (X86WrapperRIP texternalsym:$src)), addr:$dst), + (MOV64mi32 addr:$dst, texternalsym:$src)>, + Requires<[SmallCode, IsStatic]>; + + // Calls // Direct PC relative function call for small code model. 32-bit displacement // sign extended to 64-bit. |
