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[PATCH v3 56/57] tcg/s390x: Use ALGFR in constructing softmmu host addre
From: |
Richard Henderson |
Subject: |
[PATCH v3 56/57] tcg/s390x: Use ALGFR in constructing softmmu host address |
Date: |
Mon, 24 Apr 2023 06:41:04 +0100 |
Rather than zero-extend the guest address into a register,
use an add instruction which zero-extends the second input.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/s390x/tcg-target.c.inc | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc
index dfcf4d9e34..dd13326670 100644
--- a/tcg/s390x/tcg-target.c.inc
+++ b/tcg/s390x/tcg-target.c.inc
@@ -149,6 +149,7 @@ typedef enum S390Opcode {
RRE_ALGR = 0xb90a,
RRE_ALCR = 0xb998,
RRE_ALCGR = 0xb988,
+ RRE_ALGFR = 0xb91a,
RRE_CGR = 0xb920,
RRE_CLGR = 0xb921,
RRE_DLGR = 0xb987,
@@ -1853,10 +1854,11 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext
*s, HostAddress *h,
tcg_out_insn(s, RXY, LG, h->index, TCG_REG_R2, TCG_REG_NONE,
offsetof(CPUTLBEntry, addend));
- h->base = addr_reg;
if (TARGET_LONG_BITS == 32) {
- tcg_out_ext32u(s, TCG_REG_R3, addr_reg);
- h->base = TCG_REG_R3;
+ tcg_out_insn(s, RRE, ALGFR, h->index, addr_reg);
+ h->base = TCG_REG_NONE;
+ } else {
+ h->base = addr_reg;
}
h->disp = 0;
#else
--
2.34.1
- [PATCH v3 45/57] tcg/ppc: Convert tcg_out_qemu_{ld,st}_slow_path, (continued)
- [PATCH v3 45/57] tcg/ppc: Convert tcg_out_qemu_{ld,st}_slow_path, Richard Henderson, 2023/04/24
- [PATCH v3 48/57] tcg/loongarch64: Simplify constraints on qemu_ld/st, Richard Henderson, 2023/04/24
- [PATCH v3 53/57] tcg/ppc: Adjust constraints on qemu_ld/st, Richard Henderson, 2023/04/24
- [PATCH v3 52/57] tcg/ppc: Reorg tcg_out_tlb_read, Richard Henderson, 2023/04/24
- [PATCH v3 51/57] tcg/mips: Simplify constraints on qemu_ld/st, Richard Henderson, 2023/04/24
- [PATCH v3 55/57] tcg/riscv: Simplify constraints on qemu_ld/st, Richard Henderson, 2023/04/24
- [PATCH v3 57/57] tcg/s390x: Simplify constraints on qemu_ld/st, Richard Henderson, 2023/04/24
- [PATCH v3 49/57] tcg/mips: Remove MO_BSWAP handling, Richard Henderson, 2023/04/24
- [PATCH v3 47/57] tcg/s390x: Convert tcg_out_qemu_{ld,st}_slow_path, Richard Henderson, 2023/04/24
- [PATCH v3 46/57] tcg/riscv: Convert tcg_out_qemu_{ld,st}_slow_path, Richard Henderson, 2023/04/24
- [PATCH v3 56/57] tcg/s390x: Use ALGFR in constructing softmmu host address,
Richard Henderson <=
- [PATCH v3 50/57] tcg/mips: Reorg tlb load within prepare_host_addr, Richard Henderson, 2023/04/24