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ac: split 16-bit ssbo loads that may not be dword aligned

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Fixes: 7e7ee82698 ('ac: add support for 16bit buffer loads')
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108114
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Rhys Perry 2018-12-13 17:03:23 +00:00
parent 12dc7cb202
commit bde9f482de
1 changed files with 2 additions and 0 deletions
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2
src/amd/common/ac_nir_to_llvm.c
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@ -1640,6 +1640,8 @@ static LLVMValueRef visit_load_buffer(struct ac_nir_context *ctx,
LLVMValueRef results[4];
for (int i = 0; i < num_components;) {
int num_elems = num_components - i;
if (elem_size_bytes < 4 && nir_intrinsic_align(instr) % 4 != 0)
num_elems = 1;
if (num_elems * elem_size_bytes > 16)
num_elems = 16 / elem_size_bytes;
int load_bytes = num_elems * elem_size_bytes;