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qemu/tcg

History

Paolo Bonzini 3502062991 tcg/optimize: optimize TSTNE using smask and zmask Generalize the existing optimization of "TSTNE x,sign" and "TSTNE x,-1". This can be useful for example in the i386 frontend, which will generate tests of zero-extended registers against 0xffffffff. Ironically, on x86 hosts this is a very slight pessimization in the very case it's meant to optimize because brcond_i64 cc_dst,$0xffffffff,tsteq,$L1 (test %ebx, %ebx) is 1 byte smaller than brcond_i64 cc_dst,$0x0,eq,$L1 (test %rbx, %rbx). However, in general it is an improvement, especially if it avoids placing a large immediate in the constant pool. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2 years ago
..
aarch64	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
arm	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
i386	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
loongarch64	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
mips	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
ppc	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
riscv	tcg/riscv: Use BEXTI for single-bit extractions	1 year ago
s390x	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
sparc64	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
tci	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
debuginfo.c	accel/tcg: Move perf and debuginfo support to tcg/	2 years ago
meson.build	meson: Drop the .fa library suffix	2 years ago
optimize.c	tcg/optimize: optimize TSTNE using smask and zmask	1 year ago
perf.c	accel/tcg: Move perf and debuginfo support to tcg/	2 years ago
region.c	tcg: Make the cleanup-on-error path unique	2 years ago
tcg-common.c	tcg: Constify tcg_op_defs	1 year ago
tcg-has.h	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
tcg-internal.h	tcg: Move tcg_op_insert_{after,before} decls to tcg-internal.h	1 year ago
tcg-op-gvec.c	tcg: Only include 'tcg-has.h' when necessary	1 year ago
tcg-op-ldst.c	tcg: Split out tcg-target-mo.h	1 year ago
tcg-op-vec.c	tcg: Only include 'tcg-has.h' when necessary	1 year ago
tcg-op.c	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
tcg.c	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago
tci.c	tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}	1 year ago