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authorTim Northover <Tim.Northover@arm.com>2013-01-22 09:46:51 +0000
committerTim Northover <Tim.Northover@arm.com>2013-01-22 09:46:51 +0000
commit9ec55f24b8f848bb37a9971100cf2fca379d5572 (patch)
treefdb28f0db2d5d873ef4c3bbfa1ce7aaddf5b5399 /test/PCH
parent6a94c1ea2d9ee397cc9d75045117a39e8f62235d (diff)
Switch to APFloat constructor taking fltSemantics.
This change also makes the serialisation store the required semantics, fixing an issue where PPC128 was always assumed when re-reading a 128-bit value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173139 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/PCH')
-rw-r--r--test/PCH/floating-literal.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/test/PCH/floating-literal.c b/test/PCH/floating-literal.c
new file mode 100644
index 0000000000..7bf10d4e79
--- /dev/null
+++ b/test/PCH/floating-literal.c
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -triple mips64-none-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -x ast -ast-print %t | FileCheck %s
+
+// Make sure the semantics of FloatingLiterals are stored correctly in
+// the AST. Previously, the ASTWriter didn't store anything and the
+// reader assumed PPC 128-bit float semantics, which is incorrect for
+// targets with 128-bit IEEE long doubles.
+
+long double foo = 1.0E4000L;
+// CHECK: long double foo = 1.0E+4000L;
+
+// Just as well check the others are still sane while we're here...
+
+double bar = 1.0E300;
+// CHECK: double bar = 1.0E+300;
+
+float wibble = 1.0E40;
+// CHECK: float wibble = 1.0E+40;