From 6a9b29ec9b42e792732659e510a655449a41b661 Mon Sep 17 00:00:00 2001 From: Evgeniy Stepanov Date: Tue, 3 Sep 2013 10:04:11 +0000 Subject: [msan] Fix select instrumentation. Select condition shadow was being ignored resulting in false negatives. This change OR-s sign-extended condition shadow into the result shadow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189785 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Instrumentation/MemorySanitizer/msan_basic.ll | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'test/Instrumentation') diff --git a/test/Instrumentation/MemorySanitizer/msan_basic.ll b/test/Instrumentation/MemorySanitizer/msan_basic.ll index 345b070b53..466e2528dd 100644 --- a/test/Instrumentation/MemorySanitizer/msan_basic.ll +++ b/test/Instrumentation/MemorySanitizer/msan_basic.ll @@ -260,6 +260,8 @@ entry: ; CHECK: @Select ; CHECK: select +; CHECK-NEXT: sext i1 {{.*}} to i32 +; CHECK-NEXT: or i32 ; CHECK-NEXT: select ; CHECK: ret i32 @@ -274,6 +276,13 @@ entry: ret <8 x i16> %cond } +; CHECK: @SelectVector +; CHECK: select <8 x i1> +; CHECK-NEXT: sext <8 x i1> {{.*}} to <8 x i16> +; CHECK-NEXT: or <8 x i16> +; CHECK-NEXT: select <8 x i1> +; CHECK: ret <8 x i16> + ; CHECK-ORIGINS: @SelectVector ; CHECK-ORIGINS: bitcast <8 x i1> {{.*}} to i8 ; CHECK-ORIGINS: icmp ne i8 -- cgit v1.2.3