From a08b3d40f8d1093b96ca4fc8aa440fd71bd0f20e Mon Sep 17 00:00:00 2001 From: Andy Wingo Date: Sat, 21 Nov 2015 11:50:15 +0100 Subject: Untag values and indexes for all bytevector instructions * libguile/vm-engine.c (bv-s8-ref, bv-s16-ref, bv-s32-ref, bv-s64-ref): Unbox index and return unboxed S32 value. (bv-s8-set!, bv-s16-set!, bv-s32-set!, bv-s64-set!): Unbox index and take unboxed S32 value. (bv-u8-ref, bv-u16-ref, bv-u32-ref, bv-u64-ref) (bv-s8-set!, bv-s16-set!, bv-s32-set!, bv-s64-set!): Likewise, but with unsigned values. (bv-f32-ref, bv-f32-set!, bv-f64-ref, bv-f64-set!): Use memcpy to access the value so we don't have to think about alignment. GCC will inline this to a single instruction on architectures that support unaligned access. * libguile/vm.c (vm_error_out_of_range_uint64) (vm_error_out_of_range_int64): New helpers. * module/language/cps/slot-allocation.scm (compute-var-representations): All bytevector ref operations produce untagged values. * module/language/cps/types.scm (define-bytevector-accessors): Update for bytevector untagged indices and values. * module/language/cps/utils.scm (compute-constant-values): Fix s64 case. * module/language/tree-il/compile-cps.scm (convert): Box results of all bytevector accesses, and unbox incoming indices and values. --- module/system/vm/disassembler.scm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'module/system/vm/disassembler.scm') diff --git a/module/system/vm/disassembler.scm b/module/system/vm/disassembler.scm index 794caa759..6c21ad609 100644 --- a/module/system/vm/disassembler.scm +++ b/module/system/vm/disassembler.scm @@ -108,7 +108,7 @@ (define (parse-tail-word word type) (with-syntax ((word word)) (case type - ((C32 I32 A32 B32 AU32 BU32 AF32 BF32) + ((C32 I32 A32 B32 AU32 BU32 AS32 BS32 AF32 BF32) #'(word)) ((N32 R32 L32 LO32) #'((unpack-s32 word))) -- cgit v1.2.3