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[Qemu-devel] [PULL 09/15] tcg/optimize: Optmize ANDC X, Y, Y to MOV X, 0
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PULL 09/15] tcg/optimize: Optmize ANDC X, Y, Y to MOV X, 0 |
Date: |
Mon, 17 Feb 2014 19:15:59 -0600 |
Like we already do for SUB and XOR.
Reviewed-by: Paolo Bonzini <address@hidden>
Reviewed-by: Aurelien Jarno <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/optimize.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 0b1dd13..c1b9284 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -947,6 +947,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t
*tcg_opc_ptr,
/* Simplify expression for "op r, a, a => movi r, 0" cases */
switch (op) {
+ CASE_OP_32_64(andc):
CASE_OP_32_64(sub):
CASE_OP_32_64(xor):
if (temps_are_copies(args[1], args[2])) {
--
1.8.5.3
- [Qemu-devel] [PULL 00/15] tcg updates, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 02/15] tcg-arm: The shift count of op_rotl_i32 is in args[2] not args[1]., Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 01/15] TCG: Fix 32-bit host allocation typo, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 03/15] tcg/optimize: fix known-zero bits for right shift ops, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 04/15] tcg/optimize: fix known-zero bits optimization, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 05/15] tcg/optimize: improve known-zero bits for 32-bit ops, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 06/15] tcg/optimize: add known-zero bits compute for load ops, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 07/15] tcg/optimize: Handle known-zeros masks for ANDC, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 08/15] tcg/optimize: Simply some logical ops to NOT, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 09/15] tcg/optimize: Optmize ANDC X, Y, Y to MOV X, 0,
Richard Henderson <=
- [Qemu-devel] [PULL 10/15] tcg/optimize: Add more identity simplifications, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 11/15] disas/i386: Disassemble ANDN/SHLX/SHRX/SHAX, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 12/15] tcg/i386: Move TCG_CT_CONST_* to tcg-target.c, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 13/15] tcg/i386: Add tcg_out_vex_modrm, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 15/15] tcg/i386: Use SHLX/SHRX/SARX instructions, Richard Henderson, 2014/02/17
- [Qemu-devel] [PULL 14/15] tcg/i386: Use ANDN instruction, Richard Henderson, 2014/02/17
- Re: [Qemu-devel] [PULL 00/15] tcg updates, Kevin Wolf, 2014/02/19
- Re: [Qemu-devel] [PULL 00/15] tcg updates, Peter Maydell, 2014/02/20