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| author | Marek Olšák <marek.olsak@amd.com> | 2019-07-16 01:07:49 -0400 |
|---|---|---|
| committer | Marek Olšák <marek.olsak@amd.com> | 2019-07-19 20:16:19 -0400 |
| commit | 47dee973292eee6407ec17923b983f4c614e7493 (patch) | |
| tree | c5dcf5529dbc53c9ef0a6feecfe4241fd90953e2 /src/amd | |
| parent | 39d0c68321dfb592afc1f6f63d90d5508cdf7333 (diff) | |
| download | mesa-47dee973292eee6407ec17923b983f4c614e7493.tar.gz | |
ac: use llvm.amdgcn.writelane
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Diffstat (limited to 'src/amd')
| -rw-r--r-- | src/amd/common/ac_llvm_build.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c index 221850139b1..041b6cd797e 100644 --- a/src/amd/common/ac_llvm_build.c +++ b/src/amd/common/ac_llvm_build.c @@ -3825,8 +3825,12 @@ ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef la LLVMValueRef ac_build_writelane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef value, LLVMValueRef lane) { - /* TODO: Use the actual instruction when LLVM adds an intrinsic for it. - */ + if (HAVE_LLVM >= 0x0800) { + return ac_build_intrinsic(ctx, "llvm.amdgcn.writelane", ctx->i32, + (LLVMValueRef []) {value, lane, src}, 3, + AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT); + } + LLVMValueRef pred = LLVMBuildICmp(ctx->builder, LLVMIntEQ, lane, ac_get_thread_id(ctx), ""); return LLVMBuildSelect(ctx->builder, pred, value, src, ""); |