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-rw-r--r--llvm/lib/Target/AMDGPU/DSInstructions.td22
-rw-r--r--llvm/test/MC/AMDGPU/ds.s5
2 files changed, 26 insertions, 1 deletions
diff --git a/llvm/lib/Target/AMDGPU/DSInstructions.td b/llvm/lib/Target/AMDGPU/DSInstructions.td
index 41be4c5c1b4..468d67f3b68 100644
--- a/llvm/lib/Target/AMDGPU/DSInstructions.td
+++ b/llvm/lib/Target/AMDGPU/DSInstructions.td
@@ -219,6 +219,24 @@ class DS_1A_GDS <string opName> : DS_Pseudo<opName,
let gdsValue = 1;
}
+class DS_VOID <string opName> : DS_Pseudo<opName,
+ (outs), (ins), ""> {
+ let mayLoad = 0;
+ let mayStore = 0;
+ let hasSideEffects = 1;
+ let UseNamedOperandTable = 0;
+ let AsmMatchConverter = "";
+
+ let has_vdst = 0;
+ let has_addr = 0;
+ let has_data0 = 0;
+ let has_data1 = 0;
+ let has_offset = 0;
+ let has_offset0 = 0;
+ let has_offset1 = 0;
+ let has_gds = 0;
+}
+
class DS_1A1D_PERMUTE <string opName, SDPatternOperator node = null_frag>
: DS_Pseudo<opName,
(outs VGPR_32:$vdst),
@@ -440,7 +458,6 @@ def DS_ORDERED_COUNT : DS_1A_RET_GDS<"ds_ordered_count">;
// Instruction definitions for CI and newer.
//===----------------------------------------------------------------------===//
// Remaining instructions:
-// DS_NOP
// DS_GWS_SEMA_RELEASE_ALL
// DS_WRAP_RTN_B32
// DS_CNDXCHG32_RTN_B64
@@ -461,6 +478,7 @@ def DS_WRITE_B96 : DS_1A1D_NORET<"ds_write_b96", VReg_96>;
def DS_WRITE_B128 : DS_1A1D_NORET<"ds_write_b128", VReg_128>;
} // End mayLoad = 0
+def DS_NOP : DS_VOID<"ds_nop">;
} // let SubtargetPredicate = isCIVI
@@ -631,6 +649,7 @@ def DS_CMPST_B32_si : DS_Real_si<0x10, DS_CMPST_B32>;
def DS_CMPST_F32_si : DS_Real_si<0x11, DS_CMPST_F32>;
def DS_MIN_F32_si : DS_Real_si<0x12, DS_MIN_F32>;
def DS_MAX_F32_si : DS_Real_si<0x13, DS_MAX_F32>;
+def DS_NOP_si : DS_Real_si<0x14, DS_NOP>;
def DS_GWS_INIT_si : DS_Real_si<0x19, DS_GWS_INIT>;
def DS_GWS_SEMA_V_si : DS_Real_si<0x1a, DS_GWS_SEMA_V>;
def DS_GWS_SEMA_BR_si : DS_Real_si<0x1b, DS_GWS_SEMA_BR>;
@@ -799,6 +818,7 @@ def DS_CMPST_B32_vi : DS_Real_vi<0x10, DS_CMPST_B32>;
def DS_CMPST_F32_vi : DS_Real_vi<0x11, DS_CMPST_F32>;
def DS_MIN_F32_vi : DS_Real_vi<0x12, DS_MIN_F32>;
def DS_MAX_F32_vi : DS_Real_vi<0x13, DS_MAX_F32>;
+def DS_NOP_vi : DS_Real_vi<0x14, DS_NOP>;
def DS_ADD_F32_vi : DS_Real_vi<0x15, DS_ADD_F32>;
def DS_GWS_INIT_vi : DS_Real_vi<0x19, DS_GWS_INIT>;
def DS_GWS_SEMA_V_vi : DS_Real_vi<0x1a, DS_GWS_SEMA_V>;
diff --git a/llvm/test/MC/AMDGPU/ds.s b/llvm/test/MC/AMDGPU/ds.s
index 31f29cc57bb..d867b137297 100644
--- a/llvm/test/MC/AMDGPU/ds.s
+++ b/llvm/test/MC/AMDGPU/ds.s
@@ -477,3 +477,8 @@ ds_write_b128 v2, v[4:7]
// NOSI: error: instruction not supported on this GPU
// CI: ds_write_b128 v2, v[4:7] ; encoding: [0x00,0x00,0x7c,0xdb,0x02,0x04,0x00,0x00]
// VI: ds_write_b128 v2, v[4:7] ; encoding: [0x00,0x00,0xbe,0xd9,0x02,0x04,0x00,0x00]
+
+ds_nop
+// NOSI: error: instruction not supported on this GPU
+// CI: ds_nop ; encoding: [0x00,0x00,0x50,0xd8,0x00,0x00,0x00,0x00]
+// VI: ds_nop ; encoding: [0x00,0x00,0x28,0xd8,0x00,0x00,0x00,0x00]
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