From a28def75916fb4fa8280404f8c023adc0773162d Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 18 Dec 2015 14:03:43 -0800 Subject: [PATCH] Process 64-bit imm/disp only for 64-bit BFD We only need to store 32-bit immediate in 64-bit and optimize 64-bit displacement to 32-bit only for 64-bit BFD. * config/tc-i386.c (optimize_imm): Store 32-bit immediate in 64-bit only for 64-bit BFD (optimize_disp): Optimize 64-bit displacement to 32-bit only for 64-bit BFD. --- gas/ChangeLog | 7 +++++++ gas/config/tc-i386.c | 6 ++++++ 2 files changed, 13 insertions(+) diff --git a/gas/ChangeLog b/gas/ChangeLog index 3147d22..e80a36d 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,10 @@ +2015-12-18 H.J. Lu + + * config/tc-i386.c (optimize_imm): Store 32-bit immediate in + 64-bit only for 64-bit BFD. + (optimize_disp): Optimize 64-bit displacement to 32-bit only + for 64-bit BFD. + 2015-12-17 Ramana Radhakrishnan * gas/config/tc-arm.c (aeabi_set_public_attributes): Adjust diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 1573043..4940a80 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -4218,6 +4218,8 @@ optimize_imm (void) i.op[op].imms->X_add_number = (((i.op[op].imms->X_add_number & 0xffff) ^ 0x8000) - 0x8000); } +#ifdef BFD64 + /* Store 32-bit immediate in 64-bit for 64-bit BFD. */ if ((i.types[op].bitfield.imm32) && ((i.op[op].imms->X_add_number & ~(((offsetT) 2 << 31) - 1)) == 0)) @@ -4226,6 +4228,7 @@ optimize_imm (void) ^ ((offsetT) 1 << 31)) - ((offsetT) 1 << 31)); } +#endif i.types[op] = operand_type_or (i.types[op], smallest_imm_type (i.op[op].imms->X_add_number)); @@ -4306,6 +4309,8 @@ optimize_disp (void) op_disp = (((op_disp & 0xffff) ^ 0x8000) - 0x8000); i.types[op].bitfield.disp64 = 0; } +#ifdef BFD64 + /* Optimize 64-bit displacement to 32-bit for 64-bit BFD. */ if (i.types[op].bitfield.disp32 && (op_disp & ~(((offsetT) 2 << 31) - 1)) == 0) { @@ -4316,6 +4321,7 @@ optimize_disp (void) op_disp = (op_disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31); i.types[op].bitfield.disp64 = 0; } +#endif if (!op_disp && i.types[op].bitfield.baseindex) { i.types[op].bitfield.disp8 = 0; -- 2.7.4