From 0e5845c13a70e429d896f032da45211a746c8267 Mon Sep 17 00:00:00 2001 From: Daniel Dunbar Date: Fri, 25 Jul 2008 01:11:38 +0000 Subject: Rework codegen of case ranges - Fix multiple issues with the way case ranges were emitted, see test cases details about the specific issues. - The root issue was not being careful about how basic blocks were emitted which led to them being chained together incorrectly, resulting in improper control flow. - Fixes llvm-svn: 54006 --- .../test/CodeGen/rdr-6098585-default-after-caserange.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 clang/test/CodeGen/rdr-6098585-default-after-caserange.c (limited to 'clang/test/CodeGen/rdr-6098585-default-after-caserange.c') diff --git a/clang/test/CodeGen/rdr-6098585-default-after-caserange.c b/clang/test/CodeGen/rdr-6098585-default-after-caserange.c new file mode 100644 index 00000000000..1a7a53fc7fc --- /dev/null +++ b/clang/test/CodeGen/rdr-6098585-default-after-caserange.c @@ -0,0 +1,18 @@ +// RUN: clang --emit-llvm-bc -o - %s | opt -std-compile-opts | llvm-dis > %t && +// RUN: grep "ret i32" %t | count 1 && +// RUN: grep "ret i32 10" %t | count 1 + +// Ensure that default after a case range is not ignored. + +static int f1(unsigned x) { + switch(x) { + case 10 ... 0xFFFFFFFF: + return 0; + default: + return 10; + } +} + +int g() { + return f1(2); +} -- cgit v1.2.3