a000b467d3
Summary: in aeabi_ldivmod and uldivmod, using r6 instead of r12 as the temp reg due to limitation of Thumb1 ISA. Now, all EABI sources are Thumb1 compatible. Also added test cases by reusing the test cases from divmodsi4_test.c, udivmodsi4_test and udivmoddi4_test.c Reviewers: rengolin, compnerd Reviewed By: rengolin Subscribers: javed.absar, aemerson, mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D29226 llvm-svn: 293527
47 lines
1.2 KiB
ArmAsm
47 lines
1.2 KiB
ArmAsm
//===-- aeabi_ldivmod.S - EABI ldivmod 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 { int64_t quot, int64_t rem}
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// __aeabi_ldivmod(int64_t numerator, int64_t denominator) {
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// int64_t rem, quot;
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// quot = __divmoddi4(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_ldivmod __rt_sdiv64
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#endif
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.syntax unified
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.p2align 2
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DEFINE_COMPILERRT_FUNCTION(__aeabi_ldivmod)
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push {r6, lr}
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sub sp, sp, #16
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add r6, sp, #8
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str r6, [sp]
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#if defined(__MINGW32__)
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movs r6, r0
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movs r0, r2
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movs r2, r6
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movs r6, r1
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movs r1, r3
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movs r3, r6
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#endif
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bl SYMBOL_NAME(__divmoddi4)
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ldr r2, [sp, #8]
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ldr r3, [sp, #12]
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add sp, sp, #16
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pop {r6, pc}
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END_COMPILERRT_FUNCTION(__aeabi_ldivmod)
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NO_EXEC_STACK_DIRECTIVE
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