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| author | liuhongt <hongtao.liu@intel.com> | 2022-11-28 09:59:47 +0800 |
|---|---|---|
| committer | liuhongt <hongtao.liu@intel.com> | 2022-12-01 11:31:37 +0800 |
| commit | cda29c540037fbcf00a377196050953aab1d3d5b (patch) | |
| tree | 91d689982d1f135ae4019c0ca6c8d77dae74d1f7 /gcc | |
| parent | eaaf97b6147095cc19f7efdefaf55c8ebe7a94e8 (diff) | |
| download | gcc-cda29c540037fbcf00a377196050953aab1d3d5b.zip gcc-cda29c540037fbcf00a377196050953aab1d3d5b.tar.gz gcc-cda29c540037fbcf00a377196050953aab1d3d5b.tar.bz2 | |
Fix unrecognizable insn due to illegal immediate_operand (const_int 255) of QImode.
For __builtin_ia32_vec_set_v16qi (a, -1, 2) with
!flag_signed_char. it's transformed to
__builtin_ia32_vec_set_v16qi (_4, 255, 2) in the gimple,
and expanded to (const_int 255) in the rtl. But for immediate_operand,
it expects (const_int 255) to be signed extended to
(const_int -1). The mismatch caused an unrecognizable insn error.
The patch converts (const_int 255) to (const_int -1) in the backend
expander.
gcc/ChangeLog:
PR target/107863
* config/i386/i386-expand.cc (ix86_expand_vec_set_builtin):
Convert op1 to target mode whenever mode mismatch.
gcc/testsuite/ChangeLog:
* gcc.target/i386/pr107863.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386-expand.cc | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr107863.c | 8 |
2 files changed, 9 insertions, 1 deletions
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc index d26e7e4..ec3921b 100644 --- a/gcc/config/i386/i386-expand.cc +++ b/gcc/config/i386/i386-expand.cc @@ -12476,7 +12476,7 @@ ix86_expand_vec_set_builtin (tree exp) op1 = expand_expr (arg1, NULL_RTX, mode1, EXPAND_NORMAL); elt = get_element_number (TREE_TYPE (arg0), arg2); - if (GET_MODE (op1) != mode1 && GET_MODE (op1) != VOIDmode) + if (GET_MODE (op1) != mode1) op1 = convert_modes (mode1, GET_MODE (op1), op1, true); op0 = force_reg (tmode, op0); diff --git a/gcc/testsuite/gcc.target/i386/pr107863.c b/gcc/testsuite/gcc.target/i386/pr107863.c new file mode 100644 index 0000000..99fd85d --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr107863.c @@ -0,0 +1,8 @@ +/* { dg-do compile } */ +/* { dg-options "-mavx2 -O" } */ + +typedef char v16qi __attribute__((vector_size(16))); + +v16qi foo(v16qi a){ + return __builtin_ia32_vec_set_v16qi (a, -1, 2); +} |