Only emit movw on ARMv6T2+

Fix PR18364.

Patch by Dimitry Andric.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216989 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Renato Golin 2014-09-02 22:45:13 +00:00
parent 4becee113c
commit ddcf3bd0a0
2 changed files with 3 additions and 2 deletions

View File

@ -3426,7 +3426,8 @@ def : ARMPat<(ARMaddc GPR:$src, imm0_65535_neg:$imm),
def : ARMPat<(ARMadde GPR:$src, so_imm_not:$imm, CPSR),
(SBCri GPR:$src, so_imm_not:$imm)>;
def : ARMPat<(ARMadde GPR:$src, imm0_65535_neg:$imm, CPSR),
(SBCrr GPR:$src, (MOVi16 (imm_not_XFORM imm:$imm)))>;
(SBCrr GPR:$src, (MOVi16 (imm_not_XFORM imm:$imm)))>,
Requires<[IsARM, HasV6T2]>;
// Note: These are implemented in C++ code, because they have to generate
// ADD/SUBrs instructions, which use a complex pattern that a xform function

View File

@ -1,4 +1,4 @@
; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s
define i64 @f1(i64 %a, i64 %b) {
; CHECK-LABEL: f1: