2008-05-27 Zoltan Varga <vargaz@gmail.com>

	* mini.c (mini_get_inst_for_method): Add support for CAS instrinsics when
	the 'value' to store is a constant.

	* mini-ops.h: Add OP_ATOMIC_CAS_IMM opcodes.

	* mini-amd64.c (mono_arch_output_basic_block): Optimize the the implementation
	of ATOMIC_EXCHANGE opcodes, add support for the CAS opcodes.

svn path=/trunk/mono/; revision=104171

diff --git a/mono/mini/cpu-amd64.md b/mono/mini/cpu-amd64.md
index 6ea8864491e79499e0d463fa890a2d0c68844d2b..9ab2bb62033e42b06b969fa25d11951cb98bb4b5 100644 (file)
--- a/mono/mini/cpu-amd64.md
+++ b/mono/mini/cpu-amd64.md
@@ -293,10 +293,12 @@ amd64_save_sp_to_lmf: len:16
 tls_get: dest:i len:16
 atomic_add_i4: src1:b src2:i dest:i len:32
 atomic_add_new_i4: src1:b src2:i dest:i len:32
-atomic_exchange_i4: src1:b src2:i dest:i len:32
+atomic_exchange_i4: src1:b src2:i dest:a len:32
 atomic_add_i8: src1:b src2:i dest:i len:32
 atomic_add_new_i8: src1:b src2:i dest:i len:32
-atomic_exchange_i8: src1:b src2:i dest:i len:32
+atomic_exchange_i8: src1:b src2:i dest:a len:32
+atomic_cas_imm_i4: src1:b src2:i dest:a len:32
+atomic_cas_imm_i8: src1:b src2:i dest:a len:32
 memory_barrier: len:16
 adc: dest:i src1:i src2:i len:3 clob:1
 addcc: dest:i src1:i src2:i len:3 clob:1