Richard Henderson 3cdfd68e4e tcg/optimize: Fix sign_mask for logical right-shift ...

The 'sign' computation is attempting to locate the sign bit that has
been repeated, so that we can test if that bit is known zero.  That
computation can be zero if there are no known sign repetitions.

Cc: qemu-stable@nongnu.org
Fixes: 93a967fbb5 ("tcg/optimize: Propagate sign info for shifting")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2248
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit 2911e9b95f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

2024-03-31 22:14:59 +03:00

..

aarch64

tcg/aarch64: Apple does not align __int128_t in even registers

2024-03-05 17:38:26 +03:00

arm

tcg/arm: Fix goto_tb for large translation blocks

2024-02-14 21:17:26 +03:00

i386

tcg: Remove TCG_TARGET_HAS_neg_{i32,i64}

2023-11-06 08:27:21 -08:00

loongarch64

tcg/loongarch64: Set vector registers call clobbered

2024-02-09 10:44:49 +03:00

mips

tcg: Remove TCG_TARGET_HAS_neg_{i32,i64}

2023-11-06 08:27:21 -08:00

ppc

tcg/ppc: Use new registers for LQ destination

2024-01-11 21:02:11 +03:00

riscv

tcg: Remove TCG_TARGET_HAS_neg_{i32,i64}

2023-11-06 08:27:21 -08:00

s390x

tcg/s390x: Fix encoding of VRIc, VRSa, VRSc insns

2024-01-25 19:13:41 +03:00

sparc64

tcg/sparc64: Implement tcg_out_extrl_i64_i32

2023-11-06 10:48:46 -08:00

tci

tcg: Remove TCG_TARGET_HAS_neg_{i32,i64}

2023-11-06 08:27:21 -08:00

meson.build

tcg: Correct invalid mentions of 'softmmu' by 'system-mode'

2023-10-07 19:02:33 +02:00

optimize.c

tcg/optimize: Fix sign_mask for logical right-shift

2024-03-31 22:14:59 +03:00

region.c

tcg: Correct invalid mentions of 'softmmu' by 'system-mode'

2023-10-07 19:02:33 +02:00

tcg-common.c

tcg: Silent -Wmissing-field-initializers warning

2023-02-27 22:29:01 +01:00

tcg-internal.h

tcg: Move tcg_constant_* out of line

2023-11-06 08:27:21 -08:00

tcg-ldst.c.inc

tcg: Move TCGLabelQemuLdst to tcg.c

2023-05-05 17:21:03 +01:00

tcg-op-gvec.c

tcg: Don't free vector results

2023-11-06 08:27:21 -08:00

tcg-op-ldst.c

tcg: Reduce serial context atomicity earlier

2023-12-12 13:35:19 -08:00

tcg-op-vec.c

tcg: Remove vecop_list check from tcg_gen_not_vec

2023-08-29 09:57:39 -07:00

tcg-op.c

tcg: Canonicalize subi to addi during opcode generation

2023-11-06 10:43:04 -08:00

tcg-pool.c.inc

tcg: Introduce tcg_splitwx_to_{rx,rw}

2021-01-07 05:09:41 -10:00

tcg.c

tcg/ppc: Use new registers for LQ destination

2024-01-11 21:02:11 +03:00

tci.c

tcg: Remove TCG_TARGET_HAS_neg_{i32,i64}

2023-11-06 08:27:21 -08:00