[llvm] [AMDGPU][MC] Disallow null as saddr in flat instructions (PR #101730)
Jun Wang via llvm-commits
llvm-commits at lists.llvm.org
Fri Aug 9 12:14:19 PDT 2024
================
@@ -845,6 +845,14 @@ def TTMP_64 : SIRegisterClass<"AMDGPU", [v2i32, i64, f64, v4i16, v4f16, v4bf16],
let HasSGPR = 1;
}
+def SReg_64_XEXEC_XNULL : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, i1, v4i16, v4f16, v4bf16], 32,
+ (add SGPR_64, VCC, FLAT_SCR, XNACK_MASK, SRC_SHARED_BASE,
+ SRC_SHARED_LIMIT, SRC_PRIVATE_BASE, SRC_PRIVATE_LIMIT, TTMP_64, TBA, TMA)> {
+ let CopyCost = 1;
+ let AllocationPriority = 1;
+ let HasSGPR = 1;
+}
+
def SReg_64_XEXEC : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, i1, v4i16, v4f16, v4bf16], 32,
(add SGPR_64, VCC, FLAT_SCR, XNACK_MASK, SGPR_NULL64, SRC_SHARED_BASE,
SRC_SHARED_LIMIT, SRC_PRIVATE_BASE, SRC_PRIVATE_LIMIT, TTMP_64, TBA, TMA)> {
----------------
jwanggit86 wrote:
Good point!
https://github.com/llvm/llvm-project/pull/101730
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