sysdeps/i386/fpu/e_hypotf.S - Issue 3539003: Fix up RET instructions in sysdeps/i386/fpu

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Side by Side Diff: sysdeps/i386/fpu/e_hypotf.S

Issue 3539003: Fix up RET instructions in sysdeps/i386/fpu (Closed) Base URL: ssh://gitrw.chromium.org/nacl-glibc

Patch Set: Created 10 years, 2 months ago

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1 /* Compute the hypothenuse of X and Y.	1 /* Compute the hypothenuse of X and Y.

2 Copyright (C) 1998 Free Software Foundation, Inc.	2 Copyright (C) 1998 Free Software Foundation, Inc.

3 This file is part of the GNU C Library.	3 This file is part of the GNU C Library.

4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.	4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

5	5

6 The GNU C Library is free software; you can redistribute it and/or	6 The GNU C Library is free software; you can redistribute it and/or

7 modify it under the terms of the GNU Lesser General Public	7 modify it under the terms of the GNU Lesser General Public

8 License as published by the Free Software Foundation; either	8 License as published by the Free Software Foundation; either

9 version 2.1 of the License, or (at your option) any later version.	9 version 2.1 of the License, or (at your option) any later version.

10	10

(...skipping 20 matching lines...) Expand all Loading...
31 fnstsw	31 fnstsw

32 movb %ah, %al	32 movb %ah, %al

33 orb %ch, %ah	33 orb %ch, %ah

34 sahf	34 sahf

35 jc 1f	35 jc 1f

36 fmul %st(0) // y * y : x	36 fmul %st(0) // y * y : x

37 fxch // x : y * y	37 fxch // x : y * y

38 fmul %st(0) // x * x : y * y	38 fmul %st(0) // x * x : y * y

39 faddp // x * x + y * y	39 faddp // x * x + y * y

40 fsqrt	40 fsqrt

41 2:» ret	41 2:» NACLRET

42	42

43 // We have to test whether any of the parameters is Inf.	43 // We have to test whether any of the parameters is Inf.

44 // In this case the result is infinity.	44 // In this case the result is infinity.

45 1: andb $0x45, %al	45 1: andb $0x45, %al

46 cmpb $5, %al	46 cmpb $5, %al

47 je 3f // jump if y is Inf	47 je 3f // jump if y is Inf

48 andb $0x45, %ch	48 andb $0x45, %ch

49 cmpb $5, %ch	49 cmpb $5, %ch

50 jne 4f // jump if x is not Inf	50 jne 4f // jump if x is not Inf

51 fxch	51 fxch

52 3: fstp %st(1)	52 3: fstp %st(1)

53 fabs	53 fabs

54 jmp 2b	54 jmp 2b

55	55

56 4: testb $1, %al	56 4: testb $1, %al

57 jnz 5f // y is NaN	57 jnz 5f // y is NaN

58 fxch	58 fxch

59 5: fstp %st(1)	59 5: fstp %st(1)

60 jmp 2b	60 jmp 2b

61	61

62 END(__ieee754_hypotf)	62 END(__ieee754_hypotf)

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