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yann@1
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1 |
See http://gcc.gnu.org/PR15089
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yann@1
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2 |
"In some cases the specified register for a local variable meant to be
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yann@1
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3 |
used with inline assembly code is not respected. This breaks code
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yann@1
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4 |
relying on this feature to implement non-standard calling convension."
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yann@1
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5 |
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yann@1
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6 |
This fix is probably needed to properly implement linux syscalls in some architectures.
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yann@1
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7 |
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yann@1
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8 |
First added to crosstool by Jamie Hicks, see
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yann@1
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9 |
http://www.handhelds.org/hypermail/kernel-discuss/current/0066.html
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yann@1
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10 |
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yann@1
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11 |
Index: gcc/loop.c
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===================================================================
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RCS file: /cvs/gcc/gcc/gcc/loop.c,v
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yann@1
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14 |
retrieving revision 1.488.2.3
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diff -u -r1.488.2.3 loop.c
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--- gcc-old/gcc/loop.c 14 Feb 2004 14:46:03 -0000 1.488.2.3
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+++ gcc-new/gcc/loop.c 28 Apr 2004 22:02:53 -0000
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yann@1
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18 |
@@ -929,6 +929,7 @@
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yann@1
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19 |
|| (! (GET_CODE (SET_SRC (set)) == REG
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yann@1
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&& (REGNO (SET_SRC (set))
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yann@1
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< FIRST_PSEUDO_REGISTER))))
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+ && regno >= FIRST_PSEUDO_REGISTER
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/* This test is not redundant; SET_SRC (set) might be
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yann@1
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a call-clobbered register and the life of REGNO
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yann@1
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might span a call. */
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