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| author | Anton Samokhvalov <pg83@yandex.ru> | 2022-02-10 16:45:15 +0300 |
|---|---|---|
| committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:15 +0300 |
| commit | 72cb13b4aff9bc9cf22e49251bc8fd143f82538f (patch) | |
| tree | da2c34829458c7d4e74bdfbdf85dff449e9e7fb8 /contrib/libs/cxxsupp/builtins/x86_64/floatundidf.S | |
| parent | 778e51ba091dc39e7b7fcab2b9cf4dbedfb6f2b5 (diff) | |
| download | ydb-72cb13b4aff9bc9cf22e49251bc8fd143f82538f.tar.gz | |
Restoring authorship annotation for Anton Samokhvalov <pg83@yandex.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/cxxsupp/builtins/x86_64/floatundidf.S')
| -rw-r--r-- | contrib/libs/cxxsupp/builtins/x86_64/floatundidf.S | 98 |
1 files changed, 49 insertions, 49 deletions
diff --git a/contrib/libs/cxxsupp/builtins/x86_64/floatundidf.S b/contrib/libs/cxxsupp/builtins/x86_64/floatundidf.S index 3cd5d02a74..6b2f061391 100644 --- a/contrib/libs/cxxsupp/builtins/x86_64/floatundidf.S +++ b/contrib/libs/cxxsupp/builtins/x86_64/floatundidf.S @@ -1,49 +1,49 @@ -//===-- floatundidf.S - Implement __floatundidf for x86_64 ----------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is dual licensed under the MIT and the University of Illinois Open -// Source Licenses. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements __floatundidf for the compiler_rt library. -// -//===----------------------------------------------------------------------===// - -#include "../assembly.h" - -// double __floatundidf(du_int a); - -#ifdef __x86_64__ - -CONST_SECTION - - .balign 16 -twop52: - .quad 0x4330000000000000 - - .balign 16 -twop84_plus_twop52: - .quad 0x4530000000100000 - - .balign 16 -twop84: - .quad 0x4530000000000000 - -#define REL_ADDR(_a) (_a)(%rip) - -.text -.balign 4 -DEFINE_COMPILERRT_FUNCTION(__floatundidf) - movd %edi, %xmm0 // low 32 bits of a - shrq $32, %rdi // high 32 bits of a - orq REL_ADDR(twop84), %rdi // 0x1p84 + a_hi (no rounding occurs) - orpd REL_ADDR(twop52), %xmm0 // 0x1p52 + a_lo (no rounding occurs) - movd %rdi, %xmm1 - subsd REL_ADDR(twop84_plus_twop52), %xmm1 // a_hi - 0x1p52 (no rounding occurs) - addsd %xmm1, %xmm0 // a_hi + a_lo (round happens here) - ret -END_COMPILERRT_FUNCTION(__floatundidf) - -#endif // __x86_64__ +//===-- floatundidf.S - Implement __floatundidf for x86_64 ----------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements __floatundidf for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "../assembly.h" + +// double __floatundidf(du_int a); + +#ifdef __x86_64__ + +CONST_SECTION + + .balign 16 +twop52: + .quad 0x4330000000000000 + + .balign 16 +twop84_plus_twop52: + .quad 0x4530000000100000 + + .balign 16 +twop84: + .quad 0x4530000000000000 + +#define REL_ADDR(_a) (_a)(%rip) + +.text +.balign 4 +DEFINE_COMPILERRT_FUNCTION(__floatundidf) + movd %edi, %xmm0 // low 32 bits of a + shrq $32, %rdi // high 32 bits of a + orq REL_ADDR(twop84), %rdi // 0x1p84 + a_hi (no rounding occurs) + orpd REL_ADDR(twop52), %xmm0 // 0x1p52 + a_lo (no rounding occurs) + movd %rdi, %xmm1 + subsd REL_ADDR(twop84_plus_twop52), %xmm1 // a_hi - 0x1p52 (no rounding occurs) + addsd %xmm1, %xmm0 // a_hi + a_lo (round happens here) + ret +END_COMPILERRT_FUNCTION(__floatundidf) + +#endif // __x86_64__ |