mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-28 14:54:52 +01:00
Richard Smith
29c294880d
Rather than producing multiple constants with the same value, fold all instances of a given constant to the same constant instruction. A future PR will use this to replace the current type canonicalization system.
137 lines
7.0 KiB
Plaintext
137 lines
7.0 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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fn Main() {
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var a: i32 = 12;
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a = 9;
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var b: (i32, i32) = (1, 2);
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b[0] = 3;
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b[1] = 4;
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var c: {.a: i32, .b: i32} = {.a = 1, .b = 2};
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c.a = 3;
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c.b = 4;
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var p: i32* = &a;
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*p = 5;
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*(if true then p else &a) = 10;
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}
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// CHECK:STDOUT: --- assignment.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %.1: i32 = int_literal 12 [template]
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// CHECK:STDOUT: %.2: i32 = int_literal 9 [template]
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// CHECK:STDOUT: %.3: type = tuple_type (type, type) [template]
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// CHECK:STDOUT: %.4: type = tuple_type (i32, i32) [template]
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// CHECK:STDOUT: %.5: type = ptr_type (i32, i32) [template]
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// CHECK:STDOUT: %.6: i32 = int_literal 1 [template]
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// CHECK:STDOUT: %.7: i32 = int_literal 2 [template]
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// CHECK:STDOUT: %.8: i32 = int_literal 0 [template]
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// CHECK:STDOUT: %.9: i32 = int_literal 3 [template]
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// CHECK:STDOUT: %.10: i32 = int_literal 4 [template]
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// CHECK:STDOUT: %.11: type = struct_type {.a: i32, .b: i32} [template]
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// CHECK:STDOUT: %.12: type = ptr_type {.a: i32, .b: i32} [template]
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// CHECK:STDOUT: %.13: type = ptr_type i32 [template]
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// CHECK:STDOUT: %.14: i32 = int_literal 5 [template]
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// CHECK:STDOUT: %.15: bool = bool_literal true [template]
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// CHECK:STDOUT: %.16: i32 = int_literal 10 [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace package, {.Main = %Main} [template]
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// CHECK:STDOUT: %Main: <function> = fn_decl @Main [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @Main() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %a.var: ref i32 = var a
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// CHECK:STDOUT: %a: ref i32 = bind_name a, %a.var
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// CHECK:STDOUT: %.loc8: i32 = int_literal 12 [template = constants.%.1]
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// CHECK:STDOUT: assign %a.var, %.loc8
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// CHECK:STDOUT: %a.ref.loc9: ref i32 = name_ref a, %a
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// CHECK:STDOUT: %.loc9: i32 = int_literal 9 [template = constants.%.2]
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// CHECK:STDOUT: assign %a.ref.loc9, %.loc9
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// CHECK:STDOUT: %.loc11_19.1: (type, type) = tuple_literal (i32, i32)
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// CHECK:STDOUT: %.loc11_19.2: type = converted %.loc11_19.1, constants.%.4 [template = constants.%.4]
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// CHECK:STDOUT: %b.var: ref (i32, i32) = var b
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// CHECK:STDOUT: %b: ref (i32, i32) = bind_name b, %b.var
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// CHECK:STDOUT: %.loc11_24: i32 = int_literal 1 [template = constants.%.6]
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// CHECK:STDOUT: %.loc11_27: i32 = int_literal 2 [template = constants.%.7]
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// CHECK:STDOUT: %.loc11_28.1: (i32, i32) = tuple_literal (%.loc11_24, %.loc11_27)
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// CHECK:STDOUT: %.loc11_28.2: ref i32 = tuple_access %b.var, element0
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// CHECK:STDOUT: %.loc11_28.3: init i32 = initialize_from %.loc11_24 to %.loc11_28.2
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// CHECK:STDOUT: %.loc11_28.4: ref i32 = tuple_access %b.var, element1
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// CHECK:STDOUT: %.loc11_28.5: init i32 = initialize_from %.loc11_27 to %.loc11_28.4
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// CHECK:STDOUT: %.loc11_28.6: init (i32, i32) = tuple_init (%.loc11_28.3, %.loc11_28.5) to %b.var
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// CHECK:STDOUT: %.loc11_28.7: init (i32, i32) = converted %.loc11_28.1, %.loc11_28.6
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// CHECK:STDOUT: assign %b.var, %.loc11_28.7
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// CHECK:STDOUT: %b.ref.loc12: ref (i32, i32) = name_ref b, %b
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// CHECK:STDOUT: %.loc12_5: i32 = int_literal 0 [template = constants.%.8]
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// CHECK:STDOUT: %.loc12_6: ref i32 = tuple_index %b.ref.loc12, %.loc12_5
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// CHECK:STDOUT: %.loc12_10: i32 = int_literal 3 [template = constants.%.9]
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// CHECK:STDOUT: assign %.loc12_6, %.loc12_10
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// CHECK:STDOUT: %b.ref.loc13: ref (i32, i32) = name_ref b, %b
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// CHECK:STDOUT: %.loc13_5: i32 = int_literal 1 [template = constants.%.6]
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// CHECK:STDOUT: %.loc13_6: ref i32 = tuple_index %b.ref.loc13, %.loc13_5
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// CHECK:STDOUT: %.loc13_10: i32 = int_literal 4 [template = constants.%.10]
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// CHECK:STDOUT: assign %.loc13_6, %.loc13_10
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// CHECK:STDOUT: %.loc15_27: type = struct_type {.a: i32, .b: i32} [template = constants.%.11]
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// CHECK:STDOUT: %c.var: ref {.a: i32, .b: i32} = var c
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// CHECK:STDOUT: %c: ref {.a: i32, .b: i32} = bind_name c, %c.var
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// CHECK:STDOUT: %.loc15_37: i32 = int_literal 1 [template = constants.%.6]
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// CHECK:STDOUT: %.loc15_45: i32 = int_literal 2 [template = constants.%.7]
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// CHECK:STDOUT: %.loc15_46.1: {.a: i32, .b: i32} = struct_literal (%.loc15_37, %.loc15_45)
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// CHECK:STDOUT: %.loc15_46.2: ref i32 = struct_access %c.var, element0
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// CHECK:STDOUT: %.loc15_46.3: init i32 = initialize_from %.loc15_37 to %.loc15_46.2
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// CHECK:STDOUT: %.loc15_46.4: ref i32 = struct_access %c.var, element1
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// CHECK:STDOUT: %.loc15_46.5: init i32 = initialize_from %.loc15_45 to %.loc15_46.4
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// CHECK:STDOUT: %.loc15_46.6: init {.a: i32, .b: i32} = struct_init (%.loc15_46.3, %.loc15_46.5) to %c.var
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// CHECK:STDOUT: %.loc15_46.7: init {.a: i32, .b: i32} = converted %.loc15_46.1, %.loc15_46.6
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// CHECK:STDOUT: assign %c.var, %.loc15_46.7
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// CHECK:STDOUT: %c.ref.loc16: ref {.a: i32, .b: i32} = name_ref c, %c
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// CHECK:STDOUT: %.loc16_4: ref i32 = struct_access %c.ref.loc16, element0
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// CHECK:STDOUT: %.loc16_9: i32 = int_literal 3 [template = constants.%.9]
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// CHECK:STDOUT: assign %.loc16_4, %.loc16_9
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// CHECK:STDOUT: %c.ref.loc17: ref {.a: i32, .b: i32} = name_ref c, %c
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// CHECK:STDOUT: %.loc17_4: ref i32 = struct_access %c.ref.loc17, element1
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// CHECK:STDOUT: %.loc17_9: i32 = int_literal 4 [template = constants.%.10]
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// CHECK:STDOUT: assign %.loc17_4, %.loc17_9
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// CHECK:STDOUT: %.loc19_13: type = ptr_type i32 [template = constants.%.13]
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// CHECK:STDOUT: %p.var: ref i32* = var p
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// CHECK:STDOUT: %p: ref i32* = bind_name p, %p.var
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// CHECK:STDOUT: %a.ref.loc19: ref i32 = name_ref a, %a
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// CHECK:STDOUT: %.loc19_17: i32* = addr_of %a.ref.loc19
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// CHECK:STDOUT: assign %p.var, %.loc19_17
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// CHECK:STDOUT: %p.ref.loc20: ref i32* = name_ref p, %p
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// CHECK:STDOUT: %.loc20_4: i32* = bind_value %p.ref.loc20
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// CHECK:STDOUT: %.loc20_3: ref i32 = deref %.loc20_4
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// CHECK:STDOUT: %.loc20_8: i32 = int_literal 5 [template = constants.%.14]
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// CHECK:STDOUT: assign %.loc20_3, %.loc20_8
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// CHECK:STDOUT: %.loc22_8: bool = bool_literal true [template = constants.%.15]
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// CHECK:STDOUT: if %.loc22_8 br !if.expr.then else br !if.expr.else
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.expr.then:
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// CHECK:STDOUT: %p.ref.loc22: ref i32* = name_ref p, %p
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// CHECK:STDOUT: %.loc22_18: i32* = bind_value %p.ref.loc22
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// CHECK:STDOUT: br !if.expr.result(%.loc22_18)
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.expr.else:
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// CHECK:STDOUT: %a.ref.loc22: ref i32 = name_ref a, %a
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// CHECK:STDOUT: %.loc22_25: i32* = addr_of %a.ref.loc22
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// CHECK:STDOUT: br !if.expr.result(%.loc22_25)
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.expr.result:
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// CHECK:STDOUT: %.loc22_5: i32* = block_arg !if.expr.result
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// CHECK:STDOUT: %.loc22_3: ref i32 = deref %.loc22_5
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// CHECK:STDOUT: %.loc22_31: i32 = int_literal 10 [template = constants.%.16]
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// CHECK:STDOUT: assign %.loc22_3, %.loc22_31
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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