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Add name_reference SemIR node for references to names. (#3260)

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Also add `name_reference_untyped` for references to non-first-class
names without types, which currently covers namespaces and functions.

This improves the fidelity of the SemIR representation, and fixes some
issues where we would use the wrong location for nodes and diagnostics
downstream of a name reference.

We're still missing a representation for dotted name expressions, such
as `Namespace.Function`, and we don't use the `untyped` node as an
operand of any other node yet.
This commit is contained in:
Richard Smith
2023-10-05 01:15:53 +00:00
committed by GitHub
parent d552545c6d
commit 5ccee62918
97 changed files with 489 additions and 235 deletions
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toolchain/check/testdata/function/call/empty_struct.carbon
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+3 -1
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@@ -19,11 +19,13 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Echo(%a: {}) -> {} {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return %a
// CHECK:STDOUT: %a.ref: {} = name_reference "a", %a
// CHECK:STDOUT: return %a.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Echo.ref = name_reference_untyped "Echo", package.%Echo
// CHECK:STDOUT: %.loc12_9.1: {} = struct_literal ()
// CHECK:STDOUT: %.loc12_9.2: {} = struct_value %.loc12_9.1, ()
// CHECK:STDOUT: %.loc12_7: init {} = call @Echo(%.loc12_9.2)
toolchain/check/testdata/function/call/empty_tuple.carbon
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+3 -1
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@@ -19,11 +19,13 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Echo(%a: ()) -> () {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return %a
// CHECK:STDOUT: %a.ref: () = name_reference "a", %a
// CHECK:STDOUT: return %a.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Echo.ref = name_reference_untyped "Echo", package.%Echo
// CHECK:STDOUT: %.loc12_9.1: () = tuple_literal ()
// CHECK:STDOUT: %.loc12_9.2: () = tuple_value %.loc12_9.1, ()
// CHECK:STDOUT: %.loc12_7: init () = call @Echo(%.loc12_9.2)
toolchain/check/testdata/function/call/fail_param_count.carbon
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+6
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@@ -79,12 +79,18 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Run0.ref.loc18 = name_reference_untyped "Run0", package.%Run0
// CHECK:STDOUT: %.loc18_8: i32 = int_literal 1
// CHECK:STDOUT: %.loc18_7: type = tuple_type ()
// CHECK:STDOUT: %Run0.ref.loc25 = name_reference_untyped "Run0", package.%Run0
// CHECK:STDOUT: %.loc25_8: i32 = int_literal 0
// CHECK:STDOUT: %.loc25_11: i32 = int_literal 1
// CHECK:STDOUT: %Run1.ref.loc33 = name_reference_untyped "Run1", package.%Run1
// CHECK:STDOUT: %Run1.ref.loc40 = name_reference_untyped "Run1", package.%Run1
// CHECK:STDOUT: %.loc40_8: i32 = int_literal 0
// CHECK:STDOUT: %.loc40_11: i32 = int_literal 1
// CHECK:STDOUT: %Run2.ref.loc48 = name_reference_untyped "Run2", package.%Run2
// CHECK:STDOUT: %Run2.ref.loc55 = name_reference_untyped "Run2", package.%Run2
// CHECK:STDOUT: %.loc55: i32 = int_literal 0
// CHECK:STDOUT: return
// CHECK:STDOUT: }
toolchain/check/testdata/function/call/fail_param_type.carbon
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+1
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@@ -28,6 +28,7 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Run.ref = name_reference_untyped "Run", package.%Run
// CHECK:STDOUT: %.loc16_7: f64 = real_literal 10e-1
// CHECK:STDOUT: %.loc16_6: type = tuple_type ()
// CHECK:STDOUT: return
toolchain/check/testdata/function/call/fail_return_type_mismatch.carbon
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+1
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@@ -27,6 +27,7 @@ fn Run() {
// CHECK:STDOUT: fn @Run() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %x: ref i32 = var "x"
// CHECK:STDOUT: %Foo.ref = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc13: init f64 = call @Foo()
// CHECK:STDOUT: assign %x, <error>
// CHECK:STDOUT: return
toolchain/check/testdata/function/call/i32.carbon
Vendored
+3 -1
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@@ -19,12 +19,14 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Echo(%a: i32) -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return %a
// CHECK:STDOUT: %a.ref: i32 = name_reference "a", %a
// CHECK:STDOUT: return %a.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %b: ref i32 = var "b"
// CHECK:STDOUT: %Echo.ref = name_reference_untyped "Echo", package.%Echo
// CHECK:STDOUT: %.loc12_21: i32 = int_literal 1
// CHECK:STDOUT: %.loc12_20: init i32 = call @Echo(%.loc12_21)
// CHECK:STDOUT: assign %b, %.loc12_20
toolchain/check/testdata/function/call/more_param_ir.carbon
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+1
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@@ -23,6 +23,7 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Foo.ref = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc11_7: i32 = int_literal 1
// CHECK:STDOUT: %.loc11_11: i32 = int_literal 2
// CHECK:STDOUT: %.loc11_9: i32 = add %.loc11_7, %.loc11_11
toolchain/check/testdata/function/call/params_one.carbon
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+1
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@@ -22,6 +22,7 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Foo.ref = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc10_7: i32 = int_literal 1
// CHECK:STDOUT: %.loc10_6.1: type = tuple_type ()
// CHECK:STDOUT: %.loc10_6.2: init () = call @Foo(%.loc10_7)
toolchain/check/testdata/function/call/params_one_comma.carbon
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+2
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@@ -23,9 +23,11 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Foo.ref.loc10 = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc10_7: i32 = int_literal 1
// CHECK:STDOUT: %.loc10_6.1: type = tuple_type ()
// CHECK:STDOUT: %.loc10_6.2: init () = call @Foo(%.loc10_7)
// CHECK:STDOUT: %Foo.ref.loc11 = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc11_7: i32 = int_literal 1
// CHECK:STDOUT: %.loc11_6: init () = call @Foo(%.loc11_7)
// CHECK:STDOUT: return
toolchain/check/testdata/function/call/params_two.carbon
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+1
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@@ -22,6 +22,7 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Foo.ref = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc10_7: i32 = int_literal 1
// CHECK:STDOUT: %.loc10_10: i32 = int_literal 2
// CHECK:STDOUT: %.loc10_6.1: type = tuple_type ()
toolchain/check/testdata/function/call/params_two_comma.carbon
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+2
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@@ -23,10 +23,12 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Foo.ref.loc10 = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc10_7: i32 = int_literal 1
// CHECK:STDOUT: %.loc10_10: i32 = int_literal 2
// CHECK:STDOUT: %.loc10_6.1: type = tuple_type ()
// CHECK:STDOUT: %.loc10_6.2: init () = call @Foo(%.loc10_7, %.loc10_10)
// CHECK:STDOUT: %Foo.ref.loc11 = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc11_7: i32 = int_literal 1
// CHECK:STDOUT: %.loc11_10: i32 = int_literal 2
// CHECK:STDOUT: %.loc11_6: init () = call @Foo(%.loc11_7, %.loc11_10)
toolchain/check/testdata/function/call/params_zero.carbon
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+1
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@@ -22,6 +22,7 @@ fn Main() {
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Foo.ref = name_reference_untyped "Foo", package.%Foo
// CHECK:STDOUT: %.loc10_6.1: type = tuple_type ()
// CHECK:STDOUT: %.loc10_6.2: init () = call @Foo()
// CHECK:STDOUT: return
toolchain/check/testdata/function/call/return_implicit.carbon
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+1
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@@ -26,6 +26,7 @@ fn Main() {
// CHECK:STDOUT: %.loc11_11.1: type = tuple_type ()
// CHECK:STDOUT: %.loc11_11.2: () = tuple_literal ()
// CHECK:STDOUT: %b: ref () = var "b"
// CHECK:STDOUT: %MakeImplicitEmptyTuple.ref = name_reference_untyped "MakeImplicitEmptyTuple", package.%MakeImplicitEmptyTuple
// CHECK:STDOUT: %.loc11_37: init () = call @MakeImplicitEmptyTuple()
// CHECK:STDOUT: assign %b, %.loc11_37
// CHECK:STDOUT: return
toolchain/check/testdata/function/declaration/simple.carbon
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+1
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@@ -17,6 +17,7 @@ fn G() { F(); }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %F.ref = name_reference_untyped "F", package.%F
// CHECK:STDOUT: %.loc9_11.1: type = tuple_type ()
// CHECK:STDOUT: %.loc9_11.2: init () = call @F()
// CHECK:STDOUT: return