{"id":2221648,"url":"http://patchwork.ozlabs.org/api/patches/2221648/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/20260410033404.3011-1-gerris.rs@gmail.com/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260410033404.3011-1-gerris.rs@gmail.com>","list_archive_url":null,"date":"2026-04-10T03:34:04","name":"[gccrs,COMMIT] Fix ICE in unused var when we hit unit const type","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"f5c4467097f6b37fddfb4f08dc26245a94237d6f","submitter":{"id":92092,"url":"http://patchwork.ozlabs.org/api/people/92092/?format=json","name":null,"email":"gerris.rs@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/20260410033404.3011-1-gerris.rs@gmail.com/mbox/","series":[{"id":499384,"url":"http://patchwork.ozlabs.org/api/series/499384/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=499384","date":"2026-04-10T03:34:04","name":"[gccrs,COMMIT] Fix ICE in unused var when we hit unit const 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+0000","Message-ID":"<20260410033404.3011-1-gerris.rs@gmail.com>","X-Mailer":"git-send-email 2.43.0","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"From: Islam-Imad \n\nthe problem is compiling if-expr doesn't set translated to unit type.\n\ngcc/rust/ChangeLog:\n\n\t* backend/rust-compile-expr.cc (CompileExpr::visit): set unit type.\n\ngcc/testsuite/ChangeLog:\n\n\t* rust/compile/issue-4517.rs: New test.\n\nSigned-off-by: Islam-Imad \n---\nThis change was merged into the gccrs repository and is posted here for\nupstream visibility and potential drive-by review, as requested by GCC\nrelease managers.\nEach commit email contains a link to its details on github from where you can\nfind the Pull-Request and associated discussions.\n\n\nCommit on github: https://github.com/Rust-GCC/gccrs/commit/c6a1ed545ae5e31f1b74fb5d5c26eb006a96ec9a\n\nThe commit has been mentioned in the following pull-request(s):\n - https://github.com/Rust-GCC/gccrs/pull/4518\n\n gcc/rust/backend/rust-compile-expr.cc | 8 +++++---\n gcc/testsuite/rust/compile/issue-4517.rs | 5 +++++\n 2 files changed, 10 insertions(+), 3 deletions(-)\n create mode 100644 gcc/testsuite/rust/compile/issue-4517.rs\n\n\nbase-commit: 5c0e4d2c59c681f5f22d31173bf9c17202f60c80","diff":"diff --git a/gcc/rust/backend/rust-compile-expr.cc b/gcc/rust/backend/rust-compile-expr.cc\nindex 40bd2829f..55b3534a1 100644\n--- a/gcc/rust/backend/rust-compile-expr.cc\n+++ b/gcc/rust/backend/rust-compile-expr.cc\n@@ -360,6 +360,7 @@ CompileExpr::visit (HIR::IfExpr &expr)\n {\n auto stmt = CompileConditionalBlocks::compile (&expr, ctx, nullptr);\n ctx->add_statement (stmt);\n+ translated = unit_expression (expr.get_locus ());\n }\n \n void\n@@ -367,9 +368,7 @@ CompileExpr::visit (HIR::InlineAsm &expr)\n {\n CompileAsm asm_codegen (ctx);\n ctx->add_statement (asm_codegen.tree_codegen_asm (expr));\n- // translated = build_asm_expr (0, NULL_TREE, NULL_TREE, NULL_TREE, NULL_TREE,\n- //\t\t NULL_TREE, true, true);\n- // CompileAsm::asm_build_expr (expr);\n+ translated = unit_expression (expr.get_locus ());\n }\n \n void\n@@ -377,6 +376,7 @@ CompileExpr::visit (HIR::LlvmInlineAsm &expr)\n {\n CompileLlvmAsm asm_codegen (ctx);\n ctx->add_statement (asm_codegen.tree_codegen_asm (expr));\n+ translated = unit_expression (expr.get_locus ());\n }\n \n void\n@@ -848,6 +848,7 @@ CompileExpr::visit (HIR::WhileLoopExpr &expr)\n \n tree loop_expr = Backend::loop_expression (loop_block, expr.get_locus ());\n ctx->add_statement (loop_expr);\n+ translated = unit_expression (expr.get_locus ());\n }\n \n void\n@@ -1099,6 +1100,7 @@ CompileExpr::visit (HIR::AssignmentExpr &expr)\n = Backend::assignment_statement (lvalue, rvalue, expr.get_locus ());\n \n ctx->add_statement (assignment);\n+ translated = unit_expression (expr.get_locus ());\n }\n \n // Helper for CompileExpr::visit (HIR::MatchExpr).\ndiff --git a/gcc/testsuite/rust/compile/issue-4517.rs b/gcc/testsuite/rust/compile/issue-4517.rs\nnew file mode 100644\nindex 000000000..9db4082a1\n--- /dev/null\n+++ b/gcc/testsuite/rust/compile/issue-4517.rs\n@@ -0,0 +1,5 @@\n+#![feature(no_core)]\n+#![no_core]\n+\n+const _: () = if true {};\n+const x: () = if true {}; // { dg-warning \"unused name\" \"\" { target *-*-* } }\n","prefixes":["gccrs","COMMIT"]}