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Deduplicate and canonicalize all constants. (#3611)

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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.
This commit is contained in:
Richard Smith
2024-01-18 21:42:19 +00:00
committed by GitHub
parent 62db3e9ad0
commit 29c294880d
142 changed files with 1603 additions and 1185 deletions
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toolchain/check/testdata/package_expr/syntax.carbon
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+3 -2
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@@ -107,6 +107,7 @@ fn Main() {
// CHECK:STDOUT: --- namespace.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [template]
// CHECK:STDOUT: %.1: type = struct_type {} [template]
// CHECK:STDOUT: %.2: type = tuple_type () [template]
// CHECK:STDOUT: }
@@ -115,7 +116,7 @@ fn Main() {
// CHECK:STDOUT: package: <namespace> = namespace package, {.NS = %.loc4, .Main = %Main} [template]
// CHECK:STDOUT: %.loc4: <namespace> = namespace NS, {.C = %C.decl} [template]
// CHECK:STDOUT: %C.decl = class_decl @C, ()
// CHECK:STDOUT: %C: type = class_type @C [template]
// CHECK:STDOUT: %C: type = class_type @C [template = constants.%C]
// CHECK:STDOUT: %Main: <function> = fn_decl @Main [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
@@ -135,7 +136,7 @@ fn Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %package.ref: <namespace> = name_ref package, package [template = package]
// CHECK:STDOUT: %NS.ref: <namespace> = name_ref NS, file.%.loc4 [template = file.%.loc4]
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C [template = file.%C]
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C [template = constants.%C]
// CHECK:STDOUT: %Foo.ref: <function> = name_ref Foo, @C.%Foo [template = @C.%Foo]
// CHECK:STDOUT: %.loc11: init () = call %Foo.ref()
// CHECK:STDOUT: return