On Sat, 2024-04-27 at 11:04 +0800, Lulu Cheng wrote: > LGTM! > > Thanks.
Pushed r15-11 and r14-10142. > 在 2024/4/26 下午9:52, Xi Ruoyao 写道: > > Without the constrants, the compiler attempts to use a stack slot as the > > target, causing an ICE building the kernel with -Os: > > > > drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c:3144:1: > > error: could not split insn > > (insn:TI 1764 67 1745 > > (set (mem/c:DI (reg/f:DI 3 $r3) [707 %sfp+-80 S8 A64]) > > (and:DI (reg/v:DI 28 $r28 [orig:422 raster_config ] [422]) > > (const_int -50331649 [0xfffffffffcffffff]))) > > "drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c":1386:21 111 > > {*bstrins_di_for_mask} > > (nil)) > > > > Add these constrants to fix the issue. > > > > gcc/ChangeLog: > > > > PR target/114861 > > * config/loongarch/loongarch.md (bstrins_<mode>_for_mask): Add > > constraints for operands. > > (bstrins_<mode>_for_ior_mask): Likewise. > > > > gcc/testsuite/ChangeLog: > > > > PR target/114861 > > * gcc.target/loongarch/pr114861.c: New test. > > --- > > gcc/config/loongarch/loongarch.md | 16 ++++---- > > gcc/testsuite/gcc.target/loongarch/pr114861.c | 39 +++++++++++++++++++ > > 2 files changed, 47 insertions(+), 8 deletions(-) > > create mode 100644 gcc/testsuite/gcc.target/loongarch/pr114861.c > > > > diff --git a/gcc/config/loongarch/loongarch.md > > b/gcc/config/loongarch/loongarch.md > > index a316c8fb820..5c80c169cbf 100644 > > --- a/gcc/config/loongarch/loongarch.md > > +++ b/gcc/config/loongarch/loongarch.md > > @@ -1543,9 +1543,9 @@ (define_insn "and<mode>3_extended" > > (set_attr "mode" "<MODE>")]) > > > > (define_insn_and_split "*bstrins_<mode>_for_mask" > > - [(set (match_operand:GPR 0 "register_operand") > > - (and:GPR (match_operand:GPR 1 "register_operand") > > - (match_operand:GPR 2 "ins_zero_bitmask_operand")))] > > + [(set (match_operand:GPR 0 "register_operand" "=r") > > + (and:GPR (match_operand:GPR 1 "register_operand" "r") > > + (match_operand:GPR 2 "ins_zero_bitmask_operand" "i")))] > > "" > > "#" > > "" > > @@ -1563,11 +1563,11 @@ (define_insn_and_split "*bstrins_<mode>_for_mask" > > }) > > > > (define_insn_and_split "*bstrins_<mode>_for_ior_mask" > > - [(set (match_operand:GPR 0 "register_operand") > > - (ior:GPR (and:GPR (match_operand:GPR 1 "register_operand") > > - (match_operand:GPR 2 "const_int_operand")) > > - (and:GPR (match_operand:GPR 3 "register_operand") > > - (match_operand:GPR 4 "const_int_operand"))))] > > + [(set (match_operand:GPR 0 "register_operand" "=r") > > + (ior:GPR (and:GPR (match_operand:GPR 1 "register_operand" "r") > > + (match_operand:GPR 2 "const_int_operand" "i")) > > + (and:GPR (match_operand:GPR 3 "register_operand" "r") > > + (match_operand:GPR 4 "const_int_operand" "i"))))] > > "loongarch_pre_reload_split () > > && loongarch_use_bstrins_for_ior_with_mask (<MODE>mode, operands)" > > "#" > > diff --git a/gcc/testsuite/gcc.target/loongarch/pr114861.c > > b/gcc/testsuite/gcc.target/loongarch/pr114861.c > > new file mode 100644 > > index 00000000000..e6507c406b9 > > --- /dev/null > > +++ b/gcc/testsuite/gcc.target/loongarch/pr114861.c > > @@ -0,0 +1,39 @@ > > +/* PR114861: ICE building the kernel with -Os > > + Reduced from linux/fs/ntfs3/attrib.c at revision c942a0cd3603. */ > > +/* { dg-do compile } */ > > +/* { dg-options "-Os -march=loongarch64 -msoft-float -mabi=lp64s" } */ > > + > > +long evcn, attr_collapse_range_vbo, attr_collapse_range_bytes; > > +unsigned short flags; > > +int attr_collapse_range_ni_0_0; > > +int *attr_collapse_range_mi; > > +unsigned attr_collapse_range_svcn, attr_collapse_range_vcn1; > > +void ni_insert_nonresident (unsigned, unsigned short, int **); > > +int mi_pack_runs (int); > > +int > > +attr_collapse_range (void) > > +{ > > + _Bool __trans_tmp_1; > > + int run = attr_collapse_range_ni_0_0; > > + unsigned evcn1, vcn, end; > > + short a_flags = flags; > > + __trans_tmp_1 = flags & (32768 | 1); > > + if (__trans_tmp_1) > > + return 2; > > + vcn = attr_collapse_range_vbo; > > + end = attr_collapse_range_bytes; > > + evcn1 = evcn; > > + for (;;) > > + if (attr_collapse_range_svcn >= end) > > + { > > + unsigned eat, next_svcn = mi_pack_runs (42); > > + attr_collapse_range_vcn1 = (vcn ? vcn : attr_collapse_range_svcn); > > + eat = (0 < end) - attr_collapse_range_vcn1; > > + mi_pack_runs (run - eat); > > + if (next_svcn + eat) > > + ni_insert_nonresident (evcn1 - eat - next_svcn, a_flags, > > + &attr_collapse_range_mi); > > + } > > + else > > + return 42; > > +} > -- Xi Ruoyao <xry...@xry111.site> School of Aerospace Science and Technology, Xidian University