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[Qemu-devel] [PATCH 01/34] tcg: Add logical simplifications during gvec
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 01/34] tcg: Add logical simplifications during gvec expand |
Date: |
Mon, 17 Dec 2018 22:38:38 -0800 |
We handle many of these during integer expansion, and the
rest of them during integer optimization.
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/tcg-op-gvec.c | 35 ++++++++++++++++++++++++++++++-----
1 file changed, 30 insertions(+), 5 deletions(-)
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 61c25f5784..ec231b78fb 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -1840,7 +1840,12 @@ void tcg_gen_gvec_and(unsigned vece, uint32_t dofs,
uint32_t aofs,
.opc = INDEX_op_and_vec,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
- tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+
+ if (aofs == bofs) {
+ tcg_gen_gvec_mov(vece, dofs, aofs, oprsz, maxsz);
+ } else {
+ tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+ }
}
void tcg_gen_gvec_or(unsigned vece, uint32_t dofs, uint32_t aofs,
@@ -1853,7 +1858,12 @@ void tcg_gen_gvec_or(unsigned vece, uint32_t dofs,
uint32_t aofs,
.opc = INDEX_op_or_vec,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
- tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+
+ if (aofs == bofs) {
+ tcg_gen_gvec_mov(vece, dofs, aofs, oprsz, maxsz);
+ } else {
+ tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+ }
}
void tcg_gen_gvec_xor(unsigned vece, uint32_t dofs, uint32_t aofs,
@@ -1866,7 +1876,12 @@ void tcg_gen_gvec_xor(unsigned vece, uint32_t dofs,
uint32_t aofs,
.opc = INDEX_op_xor_vec,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
- tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+
+ if (aofs == bofs) {
+ tcg_gen_gvec_dup8i(dofs, oprsz, maxsz, 0);
+ } else {
+ tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+ }
}
void tcg_gen_gvec_andc(unsigned vece, uint32_t dofs, uint32_t aofs,
@@ -1879,7 +1894,12 @@ void tcg_gen_gvec_andc(unsigned vece, uint32_t dofs,
uint32_t aofs,
.opc = INDEX_op_andc_vec,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
- tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+
+ if (aofs == bofs) {
+ tcg_gen_gvec_dup8i(dofs, oprsz, maxsz, 0);
+ } else {
+ tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+ }
}
void tcg_gen_gvec_orc(unsigned vece, uint32_t dofs, uint32_t aofs,
@@ -1892,7 +1912,12 @@ void tcg_gen_gvec_orc(unsigned vece, uint32_t dofs,
uint32_t aofs,
.opc = INDEX_op_orc_vec,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
- tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+
+ if (aofs == bofs) {
+ tcg_gen_gvec_dup8i(dofs, oprsz, maxsz, -1);
+ } else {
+ tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
+ }
}
static const GVecGen2s gop_ands = {
--
2.17.2
- [Qemu-devel] [PATCH 20/34] target/ppc: convert vsplt[bhw] to use vector operations, (continued)
- [Qemu-devel] [PATCH 20/34] target/ppc: convert vsplt[bhw] to use vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 16/34] target/ppc: move FP and VMX registers into aligned vsr register array, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 24/34] target/ppc: convert xxspltw to vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 11/34] target/ppc: introduce get_fpr() and set_fpr() helpers for FP register access, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 25/34] target/ppc: convert xxsel to vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 01/34] tcg: Add logical simplifications during gvec expand,
Richard Henderson <=
- [Qemu-devel] [PATCH 13/34] target/ppc: introduce get_cpu_vsr{l, h}() and set_cpu_vsr{l, h}() helpers for VSR register access, Richard Henderson, 2018/12/18
- Re: [Qemu-devel] [PATCH 00/34] tcg, target/ppc vector improvements, Mark Cave-Ayland, 2018/12/18
- Re: [Qemu-devel] [PATCH 00/34] tcg, target/ppc vector improvements, Mark Cave-Ayland, 2018/12/18