From b249d409befb0c3a868702a7fe5a25eb6093d81f Mon Sep 17 00:00:00 2001 From: John Criswell Date: Thu, 14 Jul 2005 19:56:03 +0000 Subject: [PATCH] Regression test for PR#596: Make sure that negation of a minus doesn't turn into a C predecrement operator. llvm-svn: 22438 --- .../2005-07-14-NegationToMinusMinus.ll | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 llvm/test/Regression/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll diff --git a/llvm/test/Regression/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll b/llvm/test/Regression/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll new file mode 100644 index 000000000000..9880456dbe16 --- /dev/null +++ b/llvm/test/Regression/CodeGen/CBackend/2005-07-14-NegationToMinusMinus.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | llc -march=c | not grep "\-\-65535" +; ModuleID = '' +target endian = little +target pointersize = 32 +target triple = "i686-pc-linux-gnu" + +implementation ; Functions: + +declare void %func(int) + +void %funcb() { +entry: + %tmp.1 = sub int 0, -65535 ; [#uses=1] + call void %func( int %tmp.1 ) + br label %return + +return: ; preds = %entry + ret void +}