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56 lines
2.3 KiB
C
56 lines
2.3 KiB
C
--- sched.c.orig Thu Jun 15 05:06:39 1995
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+++ sched.c Mon Mar 20 13:29:12 2000
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@@ -794,11 +794,14 @@
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changed. A volatile and non-volatile reference can be interchanged
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though.
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- A MEM_IN_STRUCT reference at a non-QImode varying address can never
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+ A MEM_IN_STRUCT reference at a non-QImode non-AND varying address can never
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conflict with a non-MEM_IN_STRUCT reference at a fixed address. We must
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allow QImode aliasing because the ANSI C standard allows character
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pointers to alias anything. We are assuming that characters are
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- always QImode here. */
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+ always QImode here. We also must allow AND addresses, because they may
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+ generate accesses outside the object being referenced. This is used to
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+ generate aligned addresses from unaligned addresses, for instance, the
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+ alpha storeqi_unaligned pattern. */
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/* Read dependence: X is read after read in MEM takes place. There can
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only be a dependence here if both reads are volatile. */
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@@ -833,9 +836,11 @@
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SIZE_FOR_MODE (x), XEXP (x, 0), 0)
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&& ! (MEM_IN_STRUCT_P (mem) && rtx_addr_varies_p (mem)
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&& GET_MODE (mem) != QImode
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+ && GET_CODE (XEXP (mem, 0)) != AND
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&& ! MEM_IN_STRUCT_P (x) && ! rtx_addr_varies_p (x))
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&& ! (MEM_IN_STRUCT_P (x) && rtx_addr_varies_p (x)
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&& GET_MODE (x) != QImode
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+ && GET_CODE (XEXP (mem, 0)) != AND
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&& ! MEM_IN_STRUCT_P (mem) && ! rtx_addr_varies_p (mem))));
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}
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@@ -857,9 +862,11 @@
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SIZE_FOR_MODE (x), XEXP (x, 0), 0)
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&& ! (MEM_IN_STRUCT_P (mem) && rtx_addr_varies_p (mem)
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&& GET_MODE (mem) != QImode
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+ && GET_CODE (XEXP (mem, 0)) != AND
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&& ! MEM_IN_STRUCT_P (x) && ! rtx_addr_varies_p (x))
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&& ! (MEM_IN_STRUCT_P (x) && rtx_addr_varies_p (x)
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&& GET_MODE (x) != QImode
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+ && GET_CODE (XEXP (mem, 0)) != AND
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&& ! MEM_IN_STRUCT_P (mem) && ! rtx_addr_varies_p (mem))));
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}
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@@ -875,9 +882,11 @@
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SIZE_FOR_MODE (x), XEXP (x, 0), 0)
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&& ! (MEM_IN_STRUCT_P (mem) && rtx_addr_varies_p (mem)
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&& GET_MODE (mem) != QImode
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+ && GET_CODE (XEXP (mem, 0)) != AND
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&& ! MEM_IN_STRUCT_P (x) && ! rtx_addr_varies_p (x))
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&& ! (MEM_IN_STRUCT_P (x) && rtx_addr_varies_p (x)
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&& GET_MODE (x) != QImode
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+ && GET_CODE (XEXP (mem, 0)) != AND
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&& ! MEM_IN_STRUCT_P (mem) && ! rtx_addr_varies_p (mem))));
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}
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