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nvl441016.patch
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File nvl441016.patch of Package libffi43
2008-10-24 Michael Meissner <meissner@linux.vnet.ibm.com> PR target/37841 * function.c (locate_and_pad_parm): If FUNCTION_ARG_ADJUST_OFFSET is defined, use it to modify the constant offset. * doc/tm.texi (FUNCTION_ARG_OFFSET): Document new macro. * config/spu/spu.h (FUNCTION_ARG_OFFSET): New macro to move char and short arguments to the correct location as mandated by the ABI. Index: gcc-4.3.3-20081002/gcc/config/spu/spu.h =================================================================== --- gcc-4.3.3-20081002.orig/gcc/config/spu/spu.h 2008-11-02 18:46:26.000000000 -0500 +++ gcc-4.3.3-20081002/gcc/config/spu/spu.h 2008-11-02 20:08:44.000000000 -0500 @@ -384,6 +384,14 @@ : (MODE) == VOIDmode ? 1 \ : HARD_REGNO_NREGS(CUM,MODE)) + +/* The SPU ABI wants 32/64-bit types at offset 0 in the quad-word on the + stack. 8/16-bit types should be at offsets 3/2 respectively. */ +#define FUNCTION_ARG_OFFSET(MODE, TYPE) \ +(((TYPE) && INTEGRAL_TYPE_P (TYPE) && GET_MODE_SIZE (MODE) < 4) \ + ? (4 - GET_MODE_SIZE (MODE)) \ + : 0) + #define FUNCTION_ARG_PADDING(MODE,TYPE) upward #define PAD_VARARGS_DOWN 0 Index: gcc-4.3.3-20081002/gcc/doc/tm.texi =================================================================== --- gcc-4.3.3-20081002.orig/gcc/doc/tm.texi 2008-11-02 18:46:26.000000000 -0500 +++ gcc-4.3.3-20081002/gcc/doc/tm.texi 2008-11-02 20:08:44.000000000 -0500 @@ -4092,6 +4092,15 @@ used for arguments without any special help. @end defmac + +@defmac FUNCTION_ARG_OFFSET (@var{mode}, @var{type}) +If defined, a C expression that is the number of bytes to add to the +offset of the argument passed in memory. This is needed for the SPU, +which passes @code{char} and @code{short} arguments in the preferred +slot that is in the middle of the quad word instead of starting at the +top. +@end defmac + @defmac FUNCTION_ARG_PADDING (@var{mode}, @var{type}) If defined, a C expression which determines whether, and in which direction, to pad out an argument with extra space. The value should be of type Index: gcc-4.3.3-20081002/gcc/function.c =================================================================== --- gcc-4.3.3-20081002.orig/gcc/function.c 2008-11-02 18:46:26.000000000 -0500 +++ gcc-4.3.3-20081002/gcc/function.c 2008-11-02 20:08:44.000000000 -0500 @@ -3444,6 +3444,10 @@ locate->size.constant -= part_size_in_regs; #endif /* ARGS_GROW_DOWNWARD */ + +#ifdef FUNCTION_ARG_OFFSET + locate->offset.constant += FUNCTION_ARG_OFFSET (passed_mode, type); +#endif } /* Round the stack offset in *OFFSET_PTR up to a multiple of BOUNDARY. Index: gcc-4.3.3-20081002/gcc/testsuite/gcc.target/spu/abi.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gcc-4.3.3-20081002/gcc/testsuite/gcc.target/spu/abi.c 2008-11-02 20:08:44.000000000 -0500 @@ -0,0 +1,474 @@ +/* { dg-do run } */ +/* { dg-options "-O2" } */ +/* Test that arguments are passed in the correct location according to the ABI. */ + +#include <stdlib.h> + +/* Hack to allow calling func_asm which takes 84 arguments that are scalars. + The function func_call takes 84 union quadword arguments, so we can check to + see if each scalar is passed in the correct location. This asm glues the + two functions together, so that the compiler is not aware of the + aliasing. */ +__asm__ ("func_asm = func_call"); + +typedef unsigned int uqword __attribute__((mode(TI))); +typedef int qword __attribute__((mode(TI))); + +union u +{ + uqword uq; + qword sq; + double d[2]; + float f[4]; + unsigned long long ull[2]; + long long sll[2]; + unsigned long ul[4]; + long sl[4]; + unsigned int ui[4]; + int si[4]; + unsigned short us[8]; + short ss[8]; + unsigned char uc[16]; + signed char sc[16]; +}; + + +extern void func_asm(signed char a1, + unsigned char a2, + short a3, + unsigned short a4, + int a5, + unsigned int a6, + long a7, + unsigned long a8, + long long a9, + unsigned long long a10, + float a11, + double a12, + int a13, + int a14, + int a15, + int a16, + int a17, + int a18, + int a19, + int a20, + int a21, + int a22, + int a23, + int a24, + int a25, + int a26, + int a27, + int a28, + int a29, + int a30, + int a31, + int a32, + int a33, + int a34, + int a35, + int a36, + int a37, + int a38, + int a39, + int a40, + int a41, + int a42, + int a43, + int a44, + int a45, + int a46, + int a47, + int a48, + int a49, + int a50, + int a51, + int a52, + int a53, + int a54, + int a55, + int a56, + int a57, + int a58, + int a59, + int a60, + int a61, + int a62, + int a63, + int a64, + int a65, + int a66, + int a67, + int a68, + int a69, + int a70, + int a71, + int a72, + signed char a73, + unsigned char a74, + short a75, + unsigned short a76, + int a77, + unsigned int a78, + long a79, + unsigned long a80, + long long a81, + unsigned long long a82, + float a83, + double a84); + +void func_call(union u a1, + union u a2, + union u a3, + union u a4, + union u a5, + union u a6, + union u a7, + union u a8, + union u a9, + union u a10, + union u a11, + union u a12, + union u a13, + union u a14, + union u a15, + union u a16, + union u a17, + union u a18, + union u a19, + union u a20, + union u a21, + union u a22, + union u a23, + union u a24, + union u a25, + union u a26, + union u a27, + union u a28, + union u a29, + union u a30, + union u a31, + union u a32, + union u a33, + union u a34, + union u a35, + union u a36, + union u a37, + union u a38, + union u a39, + union u a40, + union u a41, + union u a42, + union u a43, + union u a44, + union u a45, + union u a46, + union u a47, + union u a48, + union u a49, + union u a50, + union u a51, + union u a52, + union u a53, + union u a54, + union u a55, + union u a56, + union u a57, + union u a58, + union u a59, + union u a60, + union u a61, + union u a62, + union u a63, + union u a64, + union u a65, + union u a66, + union u a67, + union u a68, + union u a69, + union u a70, + union u a71, + union u a72, + union u a73, + union u a74, + union u a75, + union u a76, + union u a77, + union u a78, + union u a79, + union u a80, + union u a81, + union u a82, + union u a83, + union u a84) +{ + /* arguments passed in registers */ + if (a1.sc[3] != -1) /* signed char */ + abort (); + + if (a2.uc[3] != +2) /* unsigned char */ + abort (); + + if (a3.ss[1] != -3) /* short */ + abort (); + + if (a4.us[1] != +4) /* unsigned short */ + abort (); + + if (a5.si[0] != -5) /* int */ + abort (); + + if (a6.ui[0] != +6) /* unsigned int */ + abort (); + + if (a7.sl[0] != -7) /* long */ + abort (); + + if (a8.ul[0] != +8) /* unsigned long */ + abort (); + + if (a9.sll[0] != -9) /* long long */ + abort (); + + if (a10.ull[0] != +10) /* unsigned long long */ + abort (); + + if (a11.f[0] != -11.0f) /* float */ + abort (); + + if (a12.d[0] != +12.0) /* double */ + abort (); + + if (a13.si[0] != -13) /* int */ + abort (); + + if (a14.si[0] != +14) /* int */ + abort (); + + if (a15.si[0] != -15) /* int */ + abort (); + + if (a16.si[0] != +16) /* int */ + abort (); + + if (a17.si[0] != -17) /* int */ + abort (); + + if (a18.si[0] != +18) /* int */ + abort (); + + if (a19.si[0] != -19) /* int */ + abort (); + + if (a20.si[0] != +20) /* int */ + abort (); + + if (a21.si[0] != -21) /* int */ + abort (); + + if (a22.si[0] != +22) /* int */ + abort (); + + if (a23.si[0] != -23) /* int */ + abort (); + + if (a24.si[0] != +24) /* int */ + abort (); + + if (a25.si[0] != -25) /* int */ + abort (); + + if (a26.si[0] != +26) /* int */ + abort (); + + if (a27.si[0] != -27) /* int */ + abort (); + + if (a28.si[0] != +28) /* int */ + abort (); + + if (a29.si[0] != -29) /* int */ + abort (); + + if (a30.si[0] != +30) /* int */ + abort (); + + if (a31.si[0] != -31) /* int */ + abort (); + + if (a32.si[0] != +32) /* int */ + abort (); + + if (a33.si[0] != -33) /* int */ + abort (); + + if (a34.si[0] != +34) /* int */ + abort (); + + if (a35.si[0] != -35) /* int */ + abort (); + + if (a36.si[0] != +36) /* int */ + abort (); + + if (a37.si[0] != -37) /* int */ + abort (); + + if (a38.si[0] != +38) /* int */ + abort (); + + if (a39.si[0] != -39) /* int */ + abort (); + + if (a40.si[0] != +40) /* int */ + abort (); + + if (a41.si[0] != -41) /* int */ + abort (); + + if (a42.si[0] != +42) /* int */ + abort (); + + if (a43.si[0] != -43) /* int */ + abort (); + + if (a44.si[0] != +44) /* int */ + abort (); + + if (a45.si[0] != -45) /* int */ + abort (); + + if (a46.si[0] != +46) /* int */ + abort (); + + if (a47.si[0] != -47) /* int */ + abort (); + + if (a48.si[0] != +48) /* int */ + abort (); + + if (a49.si[0] != -49) /* int */ + abort (); + + if (a50.si[0] != +50) /* int */ + abort (); + + if (a51.si[0] != -51) /* int */ + abort (); + + if (a52.si[0] != +52) /* int */ + abort (); + + if (a53.si[0] != -53) /* int */ + abort (); + + if (a54.si[0] != +54) /* int */ + abort (); + + if (a55.si[0] != -55) /* int */ + abort (); + + if (a56.si[0] != +56) /* int */ + abort (); + + if (a57.si[0] != -57) /* int */ + abort (); + + if (a58.si[0] != +58) /* int */ + abort (); + + if (a59.si[0] != -59) /* int */ + abort (); + + if (a60.si[0] != +60) /* int */ + abort (); + + if (a61.si[0] != -61) /* int */ + abort (); + + if (a62.si[0] != +62) /* int */ + abort (); + + if (a63.si[0] != -63) /* int */ + abort (); + + if (a64.si[0] != +64) /* int */ + abort (); + + if (a65.si[0] != -65) /* int */ + abort (); + + if (a66.si[0] != +66) /* int */ + abort (); + + if (a67.si[0] != -67) /* int */ + abort (); + + if (a68.si[0] != +68) /* int */ + abort (); + + if (a69.si[0] != -69) /* int */ + abort (); + + if (a70.si[0] != +70) /* int */ + abort (); + + if (a71.si[0] != -71) /* int */ + abort (); + + if (a72.si[0] != +72) /* int */ + abort (); + + /* arguments passed on the stack */ + if (a73.sc[3] != -73) /* signed char */ + abort (); + + if (a74.uc[3] != 74) /* unsigned char */ + abort (); + + if (a75.ss[1] != -75) /* short */ + abort (); + + if (a76.us[1] != +76) /* unsigned short */ + abort (); + + if (a77.si[0] != -77) /* int */ + abort (); + + if (a78.ui[0] != +78) /* unsigned int */ + abort (); + + if (a79.sl[0] != -79) /* long */ + abort (); + + if (a80.ul[0] != +80) /* unsigned long */ + abort (); + + if (a81.sll[0] != -81) /* long long */ + abort (); + + if (a82.ull[0] != +82) /* unsigned long long */ + abort (); + + if (a83.f[0] != -83.0f) /* float */ + abort (); + + if (a84.d[0] != +84.0) /* double */ + abort (); +} + +int main(void) +{ + func_asm(-1, +2, -3, +4, -5, +6, -7, +8, -9, +10, + -11, +12, -13, +14, -15, +16, -17, +18, -19, +20, + -21, +22, -23, +24, -25, +26, -27, +28, -29, +30, + -31, +32, -33, +34, -35, +36, -37, +38, -39, +40, + -41, +42, -43, +44, -45, +46, -47, +48, -49, +50, + -51, +52, -53, +54, -55, +56, -57, +58, -59, +60, + -61, +62, -63, +64, -65, +66, -67, +68, -69, +70, + -71, +72, -73, +74, -75, +76, -77, +78, -79, +80, + -81, +82, -83, +84); + + return 0; +}
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