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-rw-r--r--lib/Target/WebAssembly/WebAssemblyInstrControl.td104
1 files changed, 50 insertions, 54 deletions
diff --git a/lib/Target/WebAssembly/WebAssemblyInstrControl.td b/lib/Target/WebAssembly/WebAssemblyInstrControl.td
index d90244b90662..7eb6cbf4d249 100644
--- a/lib/Target/WebAssembly/WebAssemblyInstrControl.td
+++ b/lib/Target/WebAssembly/WebAssemblyInstrControl.td
@@ -12,8 +12,6 @@
///
//===----------------------------------------------------------------------===//
-let Defs = [ARGUMENTS] in {
-
let isBranch = 1, isTerminator = 1, hasCtrlDep = 1 in {
// The condition operand is a boolean value which WebAssembly represents as i32.
defm BR_IF : I<(outs), (ins bb_op:$dst, I32:$cond),
@@ -30,47 +28,37 @@ defm BR : NRI<(outs), (ins bb_op:$dst),
} // isBarrier = 1
} // isBranch = 1, isTerminator = 1, hasCtrlDep = 1
-} // Defs = [ARGUMENTS]
-
def : Pat<(brcond (i32 (setne I32:$cond, 0)), bb:$dst),
(BR_IF bb_op:$dst, I32:$cond)>;
def : Pat<(brcond (i32 (seteq I32:$cond, 0)), bb:$dst),
(BR_UNLESS bb_op:$dst, I32:$cond)>;
-let Defs = [ARGUMENTS] in {
+// A list of branch targets enclosed in {} and separated by comma.
+// Used by br_table only.
+def BrListAsmOperand : AsmOperandClass { let Name = "BrList"; }
+let OperandNamespace = "WebAssembly" in {
+let OperandType = "OPERAND_BRLIST" in {
+def brlist : Operand<i32> {
+ let ParserMatchClass = BrListAsmOperand;
+ let PrintMethod = "printBrList";
+}
+} // OPERAND_BRLIST
+} // OperandNamespace = "WebAssembly"
// TODO: SelectionDAG's lowering insists on using a pointer as the index for
// jump tables, so in practice we don't ever use BR_TABLE_I64 in wasm32 mode
// currently.
-// Set TSFlags{0} to 1 to indicate that the variable_ops are immediates.
-// Set TSFlags{1} to 1 to indicate that the immediates represent labels.
-// FIXME: this can't inherit from I<> since there is no way to inherit from a
-// multiclass and still have the let statements.
let isTerminator = 1, hasCtrlDep = 1, isBarrier = 1 in {
-def BR_TABLE_I32 : NI<(outs), (ins I32:$index, variable_ops),
- [(WebAssemblybr_table I32:$index)], 0,
- "br_table \t$index", 0x0e> {
- let TSFlags{0} = 1;
- let TSFlags{1} = 1;
-}
-def BR_TABLE_I32_S : NI<(outs), (ins I32:$index),
- [], 1,
- "br_table \t$index", 0x0e> {
- let TSFlags{0} = 1;
- let TSFlags{1} = 1;
-}
-def BR_TABLE_I64 : NI<(outs), (ins I64:$index, variable_ops),
- [(WebAssemblybr_table I64:$index)], 0,
- "br_table \t$index"> {
- let TSFlags{0} = 1;
- let TSFlags{1} = 1;
-}
-def BR_TABLE_I64_S : NI<(outs), (ins I64:$index),
- [], 1,
- "br_table \t$index"> {
- let TSFlags{0} = 1;
- let TSFlags{1} = 1;
-}
+defm BR_TABLE_I32 : I<(outs), (ins I32:$index, variable_ops),
+ (outs), (ins brlist:$brl),
+ [(WebAssemblybr_table I32:$index)],
+ "br_table \t$index", "br_table \t$brl",
+ 0x0e>;
+defm BR_TABLE_I64 : I<(outs), (ins I64:$index, variable_ops),
+ (outs), (ins brlist:$brl),
+ [(WebAssemblybr_table I64:$index)],
+ "br_table \t$index", "br_table \t$brl",
+ 0x0e>;
} // isTerminator = 1, hasCtrlDep = 1, isBarrier = 1
// This is technically a control-flow instruction, since all it affects is the
@@ -81,13 +69,19 @@ defm NOP : NRI<(outs), (ins), [], "nop", 0x01>;
// These use/clobber VALUE_STACK to prevent them from being moved into the
// middle of an expression tree.
let Uses = [VALUE_STACK], Defs = [VALUE_STACK] in {
-defm BLOCK : NRI<(outs), (ins Signature:$sig), [], "block \t$sig", 0x02>;
-defm LOOP : NRI<(outs), (ins Signature:$sig), [], "loop \t$sig", 0x03>;
+defm BLOCK : NRI<(outs), (ins Signature:$sig), [], "block \t$sig", 0x02>;
+defm LOOP : NRI<(outs), (ins Signature:$sig), [], "loop \t$sig", 0x03>;
+
+defm IF : I<(outs), (ins Signature:$sig, I32:$cond),
+ (outs), (ins Signature:$sig),
+ [], "if \t$sig, $cond", "if \t$sig", 0x04>;
+defm ELSE : NRI<(outs), (ins), [], "else", 0x05>;
-// END_BLOCK, END_LOOP, and END_FUNCTION are represented with the same opcode in
-// wasm.
+// END_BLOCK, END_LOOP, END_IF and END_FUNCTION are represented with the same
+// opcode in wasm.
defm END_BLOCK : NRI<(outs), (ins), [], "end_block", 0x0b>;
defm END_LOOP : NRI<(outs), (ins), [], "end_loop", 0x0b>;
+defm END_IF : NRI<(outs), (ins), [], "end_if", 0x0b>;
let isTerminator = 1, isBarrier = 1 in
defm END_FUNCTION : NRI<(outs), (ins), [], "end_function", 0x0b>;
} // Uses = [VALUE_STACK], Defs = [VALUE_STACK]
@@ -103,14 +97,16 @@ multiclass RETURN<WebAssemblyRegClass vt> {
}
multiclass SIMD_RETURN<ValueType vt> {
- defm RETURN_#vt : SIMD_I<(outs), (ins V128:$val), (outs), (ins),
- [(WebAssemblyreturn (vt V128:$val))],
- "return \t$val", "return", 0x0f>;
+ defm RETURN_#vt : I<(outs), (ins V128:$val), (outs), (ins),
+ [(WebAssemblyreturn (vt V128:$val))],
+ "return \t$val", "return", 0x0f>,
+ Requires<[HasSIMD128]>;
// Equivalent to RETURN_#vt, for use at the end of a function when wasm
// semantics return by falling off the end of the block.
let isCodeGenOnly = 1 in
- defm FALLTHROUGH_RETURN_#vt : SIMD_I<(outs), (ins V128:$val), (outs), (ins),
- []>;
+ defm FALLTHROUGH_RETURN_#vt : I<(outs), (ins V128:$val), (outs), (ins),
+ []>,
+ Requires<[HasSIMD128]>;
}
let isTerminator = 1, hasCtrlDep = 1, isBarrier = 1 in {
@@ -124,7 +120,9 @@ let isReturn = 1 in {
defm "": SIMD_RETURN<v16i8>;
defm "": SIMD_RETURN<v8i16>;
defm "": SIMD_RETURN<v4i32>;
+ defm "": SIMD_RETURN<v2i64>;
defm "": SIMD_RETURN<v4f32>;
+ defm "": SIMD_RETURN<v2f64>;
defm RETURN_VOID : NRI<(outs), (ins), [(WebAssemblyreturn)], "return", 0x0f>;
@@ -144,14 +142,16 @@ let Predicates = [HasExceptionHandling] in {
// Throwing an exception: throw / rethrow
let isTerminator = 1, hasCtrlDep = 1, isBarrier = 1 in {
-defm THROW_I32 : I<(outs), (ins i32imm:$tag, I32:$val),
- (outs), (ins i32imm:$tag),
- [(int_wasm_throw imm:$tag, I32:$val)],
+defm THROW_I32 : I<(outs), (ins event_op:$tag, I32:$val),
+ (outs), (ins event_op:$tag),
+ [(WebAssemblythrow (WebAssemblywrapper texternalsym:$tag),
+ I32:$val)],
"throw \t$tag, $val", "throw \t$tag",
0x08>;
-defm THROW_I64 : I<(outs), (ins i32imm:$tag, I64:$val),
- (outs), (ins i32imm:$tag),
- [(int_wasm_throw imm:$tag, I64:$val)],
+defm THROW_I64 : I<(outs), (ins event_op:$tag, I64:$val),
+ (outs), (ins event_op:$tag),
+ [(WebAssemblythrow (WebAssemblywrapper texternalsym:$tag),
+ I64:$val)],
"throw \t$tag, $val", "throw \t$tag",
0x08>;
defm RETHROW : NRI<(outs), (ins bb_op:$dst), [], "rethrow \t$dst", 0x09>;
@@ -168,7 +168,7 @@ defm END_TRY : NRI<(outs), (ins), [], "end_try", 0x0b>;
} // Uses = [VALUE_STACK], Defs = [VALUE_STACK]
// Catching an exception: catch / catch_all
-let hasCtrlDep = 1 in {
+let hasCtrlDep = 1, hasSideEffects = 1 in {
defm CATCH_I32 : I<(outs I32:$dst), (ins i32imm:$tag),
(outs), (ins i32imm:$tag),
[(set I32:$dst, (int_wasm_catch imm:$tag))],
@@ -181,14 +181,10 @@ defm CATCH_ALL : NRI<(outs), (ins), [], "catch_all", 0x05>;
}
// Pseudo instructions: cleanupret / catchret
-// They are not return instructions in wasm, but setting 'isReturn' to true as
-// in X86 is necessary for computing EH scope membership.
let isTerminator = 1, hasSideEffects = 1, isBarrier = 1, hasCtrlDep = 1,
- isCodeGenOnly = 1, isReturn = 1 in {
+ isCodeGenOnly = 1, isEHScopeReturn = 1 in {
defm CLEANUPRET : NRI<(outs), (ins), [(cleanupret)], "", 0>;
defm CATCHRET : NRI<(outs), (ins bb_op:$dst, bb_op:$from),
[(catchret bb:$dst, bb:$from)], "", 0>;
}
}
-
-} // Defs = [ARGUMENTS]
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-03 01:27:19 +0000