8bf15723ae
Summary: Value of __ARM_ARCH_ISA_THUMB isn't based on the actual compilation mode (-mthumb, -marm), it reflect's capability of given CPU. Due to this: •use tbumb and thumb2 insteand of __ARM_ARCH_ISA_THUMB •use '.thumb' directive consistently in all affected files •decorate all thumb functions using DEFINE_COMPILERRT_THUMB_FUNCTION() (This is based off Michal's patch https://reviews.llvm.org/D30938) Reviewers: dim, rengolin, compnerd, strejda Reviewed By: compnerd Subscribers: peter.smith, kubamracek, mgorny, javed.absar, kristof.beyls, jamesduley, aemerson, llvm-commits Differential Revision: https://reviews.llvm.org/D31220 llvm-svn: 310884
59 lines
1.6 KiB
ArmAsm
59 lines
1.6 KiB
ArmAsm
//===-- aeabi_uidivmod.S - EABI uidivmod implementation -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "../assembly.h"
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// struct { unsigned quot, unsigned rem}
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// __aeabi_uidivmod(unsigned numerator, unsigned denominator) {
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// unsigned rem, quot;
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// quot = __udivmodsi4(numerator, denominator, &rem);
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// return {quot, rem};
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// }
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#if defined(__MINGW32__)
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#define __aeabi_uidivmod __rt_udiv
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#endif
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.syntax unified
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.text
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DEFINE_CODE_STATE
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.p2align 2
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DEFINE_COMPILERRT_FUNCTION(__aeabi_uidivmod)
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#if defined(USE_THUMB_1)
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cmp r0, r1
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bcc LOCAL_LABEL(case_denom_larger)
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push {r0, r1, lr}
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bl SYMBOL_NAME(__aeabi_uidiv)
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pop {r1, r2, r3}
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muls r2, r0, r2 // r2 = quot * denom
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subs r1, r1, r2
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JMP (r3)
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LOCAL_LABEL(case_denom_larger):
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movs r1, r0
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movs r0, #0
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JMP (lr)
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#else // defined(USE_THUMB_1)
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push { lr }
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sub sp, sp, #4
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mov r2, sp
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#if defined(__MINGW32__)
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mov r3, r0
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mov r0, r1
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mov r1, r3
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#endif
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bl SYMBOL_NAME(__udivmodsi4)
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ldr r1, [sp]
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add sp, sp, #4
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pop { pc }
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#endif
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END_COMPILERRT_FUNCTION(__aeabi_uidivmod)
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NO_EXEC_STACK_DIRECTIVE
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