From: Juzhe-Zhong <juzhe.zh...@rivai.ai> V2 patch for: https://patchwork.sourceware.org/project/gcc/patch/20230330012804.110539-1-juzhe.zh...@rivai.ai/ which has been reviewed.
This patch address Jeff's comment, refine ChangeLog to give more clear information. gcc/ChangeLog: * config/riscv/vector-iterators.md: New unspec to refine fault first load pattern. * config/riscv/vector.md: Refine fault first load pattern to erase avl from instructions with the fault first load property. gcc/testsuite/ChangeLog: * gcc.target/riscv/rvv/vsetvl/ffload-1.c: New test. * gcc.target/riscv/rvv/vsetvl/ffload-2.c: New test. * gcc.target/riscv/rvv/vsetvl/ffload-3.c: New test. * gcc.target/riscv/rvv/vsetvl/ffload-5.c: New test. * gcc.target/riscv/rvv/vsetvl/ffload-6.c: New test. * gcc.target/riscv/rvv/vsetvl/ffload-7.c: New test. --- gcc/config/riscv/vector-iterators.md | 1 + gcc/config/riscv/vector.md | 10 +++++- .../gcc.target/riscv/rvv/vsetvl/ffload-1.c | 21 ++++++++++++ .../gcc.target/riscv/rvv/vsetvl/ffload-2.c | 28 ++++++++++++++++ .../gcc.target/riscv/rvv/vsetvl/ffload-3.c | 28 ++++++++++++++++ .../gcc.target/riscv/rvv/vsetvl/ffload-5.c | 29 +++++++++++++++++ .../gcc.target/riscv/rvv/vsetvl/ffload-6.c | 29 +++++++++++++++++ .../gcc.target/riscv/rvv/vsetvl/ffload-7.c | 32 +++++++++++++++++++ 8 files changed, 177 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-1.c create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-2.c create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-3.c create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-5.c create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-6.c create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-7.c diff --git a/gcc/config/riscv/vector-iterators.md b/gcc/config/riscv/vector-iterators.md index 3c6575208be..a8e856161d3 100644 --- a/gcc/config/riscv/vector-iterators.md +++ b/gcc/config/riscv/vector-iterators.md @@ -80,6 +80,7 @@ UNSPEC_VRGATHEREI16 UNSPEC_VCOMPRESS UNSPEC_VLEFF + UNSPEC_MODIFY_VL ]) (define_mode_iterator V [ diff --git a/gcc/config/riscv/vector.md b/gcc/config/riscv/vector.md index 0fda11ed67d..959afac2283 100644 --- a/gcc/config/riscv/vector.md +++ b/gcc/config/riscv/vector.md @@ -7414,7 +7414,15 @@ (unspec:V [(match_operand:V 3 "memory_operand" " m, m, m, m")] UNSPEC_VLEFF) (match_operand:V 2 "vector_merge_operand" " vu, 0, vu, 0"))) - (set (reg:SI VL_REGNUM) (unspec:SI [(match_dup 0)] UNSPEC_VLEFF))] + (set (reg:SI VL_REGNUM) + (unspec:SI + [(if_then_else:V + (unspec:<VM> + [(match_dup 1) (match_dup 4) (match_dup 5) + (match_dup 6) (match_dup 7) + (reg:SI VL_REGNUM) (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE) + (unspec:V [(match_dup 3)] UNSPEC_VLEFF) + (match_dup 2))] UNSPEC_MODIFY_VL))] "TARGET_VECTOR" "vle<sew>ff.v\t%0,%3%p1" [(set_attr "type" "vldff") diff --git a/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-1.c b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-1.c new file mode 100644 index 00000000000..b2b7eafa945 --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-1.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-march=rv32gcv -mabi=ilp32 -fno-tree-vectorize -fno-schedule-insns -fno-schedule-insns2" } */ + +#include "riscv_vector.h" + +void f (int8_t * restrict in, int8_t * restrict out, int n, int cond,size_t *new_vl,size_t *new_vl2) +{ + size_t vl = 101; + + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in, vl); + __riscv_vse8_v_i8mf8 (out, v, vl); + vbool64_t mask = __riscv_vlm_v_b64 (in + 100, vl); + vint8mf8_t v2 = __riscv_vle8ff_v_i8mf8_tumu (mask, v, in + 100, new_vl, vl); + __riscv_vse8_v_i8mf8 (out + 100, v2, *new_vl); + v2 = __riscv_vle8ff_v_i8mf8_tumu (mask, v2, in + 200, new_vl2, vl); + __riscv_vse8_v_i8mf8 (out + 200, v2, *new_vl2); +} + +/* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e8,\s*mf8,\s*tu,\s*mu} 2 { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ +/* { dg-final { scan-assembler-times {csrr} 2 { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ +/* { dg-final { scan-assembler-not {vmv} { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ diff --git a/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-2.c b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-2.c new file mode 100644 index 00000000000..c0e21d461e7 --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-2.c @@ -0,0 +1,28 @@ +/* { dg-do compile } */ +/* { dg-options "-march=rv32gcv -mabi=ilp32 -fno-tree-vectorize -fno-schedule-insns -fno-schedule-insns2" } */ + +#include "riscv_vector.h" + +void f (int8_t * restrict in, int8_t * restrict out, int n, int m, int cond) +{ + size_t vl = 101; + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i, vl); + __riscv_vse8_v_i8mf8 (out + i, v, vl); + + vbool64_t mask = __riscv_vlm_v_b64 (in + i + 100, vl); + + vint8mf8_t v2 = __riscv_vle8ff_v_i8mf8_tumu (mask, v, in + i + 100, &vl, vl); + __riscv_vse8_v_i8mf8 (out + i + 100, v2, vl); + } + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i + 300, vl); + __riscv_vse8_v_i8mf8 (out + i + 300, v, vl); + } +} + +/* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e8,\s*mf8,\s*tu,\s*mu} 1 { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ diff --git a/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-3.c b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-3.c new file mode 100644 index 00000000000..9e90b189bd6 --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-3.c @@ -0,0 +1,28 @@ +/* { dg-do compile } */ +/* { dg-options "-march=rv32gcv -mabi=ilp32 -fno-tree-vectorize -fno-schedule-insns -fno-schedule-insns2" } */ + +#include "riscv_vector.h" + +void f (int8_t * restrict in, int8_t * restrict out, int n, int m, int cond) +{ + size_t vl = 101; + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i, vl); + __riscv_vse8_v_i8mf8 (out + i, v, vl); + + vbool64_t mask = __riscv_vlm_v_b64 (in + i + 100, vl); + + vint8mf8_t v2 = __riscv_vle8ff_v_i8mf8_tumu (mask, v, in + i + 100, &vl, vl); + __riscv_vse8_v_i8mf8 (out + i + 100, v2, vl); + } + + for (size_t i = 0; i < m; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i + 300, vl); + __riscv_vse8_v_i8mf8 (out + i + 300, v, vl); + } +} + +/* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e8,\s*mf8,\s*t[au],\s*m[au]} 2 { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ diff --git a/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-5.c b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-5.c new file mode 100644 index 00000000000..895180cc54e --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-5.c @@ -0,0 +1,29 @@ +/* { dg-do compile } */ +/* { dg-options "-march=rv32gcv -mabi=ilp32 -fno-tree-vectorize -fno-schedule-insns -fno-schedule-insns2" } */ + +#include "riscv_vector.h" + +void f (int8_t * restrict in, int8_t * restrict out, int n, int m, int cond) +{ + size_t vl = 101; + size_t new_vl; + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i, vl); + __riscv_vse8_v_i8mf8 (out + i, v, vl); + + vbool64_t mask = __riscv_vlm_v_b64 (in + i + 100, vl); + + vint8mf8_t v2 = __riscv_vle8ff_v_i8mf8_tumu (mask, v, in + i + 100, &new_vl, vl); + __riscv_vse8_v_i8mf8 (out + i + 100, v2, new_vl); + } + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i + 300, new_vl); + __riscv_vse8_v_i8mf8 (out + i + 300, v, new_vl); + } +} + +/* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e8,\s*mf8,\s*tu,\s*mu} 1 { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ diff --git a/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-6.c b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-6.c new file mode 100644 index 00000000000..1b32f4ab24b --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-6.c @@ -0,0 +1,29 @@ +/* { dg-do compile } */ +/* { dg-options "-march=rv32gcv -mabi=ilp32 -fno-tree-vectorize -fno-schedule-insns -fno-schedule-insns2" } */ + +#include "riscv_vector.h" + +void f (int8_t * restrict in, int8_t * restrict out, int n, int m, int cond) +{ + size_t vl = 101; + size_t new_vl; + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i, vl); + __riscv_vse8_v_i8mf8 (out + i, v, vl); + + vbool64_t mask = __riscv_vlm_v_b64 (in + i + 100, vl); + + vint8mf8_t v2 = __riscv_vle8ff_v_i8mf8_tumu (mask, v, in + i + 100, &new_vl, vl); + __riscv_vse8_v_i8mf8 (out + i + 100, v2, vl); + } + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i + 300, new_vl); + __riscv_vse8_v_i8mf8 (out + i + 300, v, new_vl); + } +} + +/* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e8,\s*mf8,\s*t[au],\s*m[au]} 3 { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ diff --git a/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-7.c b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-7.c new file mode 100644 index 00000000000..1c08b75873d --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/ffload-7.c @@ -0,0 +1,32 @@ +/* { dg-do compile } */ +/* { dg-options "-march=rv32gcv -mabi=ilp32 -fno-tree-vectorize -fno-schedule-insns -fno-schedule-insns2" } */ + +#include "riscv_vector.h" + +void f (int8_t * restrict in, int8_t * restrict out, int n, int m, int cond) +{ + size_t vl = 101; + if (cond) + vl = m * 2; + else + vl = m * 2 * vl; + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i, vl); + __riscv_vse8_v_i8mf8 (out + i, v, vl); + + vbool64_t mask = __riscv_vlm_v_b64 (in + i + 100, vl); + + vint8mf8_t v2 = __riscv_vle8ff_v_i8mf8_tumu (mask, v, in + i + 100, &vl, vl); + __riscv_vse8_v_i8mf8 (out + i + 100, v2, vl); + } + + for (size_t i = 0; i < n; i++) + { + vint8mf8_t v = __riscv_vle8_v_i8mf8 (in + i + 300, vl); + __riscv_vse8_v_i8mf8 (out + i + 300, v, vl); + } +} + +/* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e8,\s*mf8,\s*tu,\s*mu} 1 { target { no-opts "-O0" no-opts "-g" no-opts "-funroll-loops" } } } } */ -- 2.36.1