Correctly byte-swap APInts with bit-widths greater than 64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145111 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 17 insertions, 1 deletions

diff --git a/test/Transforms/ConstProp/bswap.ll b/test/Transforms/ConstProp/bswap.ll
index 9fce309..a68fdcd 100644
--- a/test/Transforms/ConstProp/bswap.ll
+++ b/test/Transforms/ConstProp/bswap.ll
@@ -1,6 +1,6 @@
 ; bswap should be constant folded when it is passed a constant argument
 
-; RUN: opt < %s -constprop -S | not grep call
+; RUN: opt < %s -constprop -S | FileCheck %s
 
 declare i16 @llvm.bswap.i16(i16)
 
@@ -8,18 +8,34 @@ declare i32 @llvm.bswap.i32(i32)
 
 declare i64 @llvm.bswap.i64(i64)
 
+declare i80 @llvm.bswap.i80(i80)
+
+; CHECK: define i16 @W
 define i16 @W() {
+        ; CHECK: ret i16 256
         %Z = call i16 @llvm.bswap.i16( i16 1 )          ; <i16> [#uses=1]
         ret i16 %Z
 }
 
+; CHECK: define i32 @X
 define i32 @X() {
+        ; CHECK: ret i32 16777216
         %Z = call i32 @llvm.bswap.i32( i32 1 )          ; <i32> [#uses=1]
         ret i32 %Z
 }
 
+; CHECK: define i64 @Y
 define i64 @Y() {
+        ; CHECK: ret i64 72057594037927936
         %Z = call i64 @llvm.bswap.i64( i64 1 )          ; <i64> [#uses=1]
         ret i64 %Z
 }
 
+; CHECK: define i80 @Z
+define i80 @Z() {
+        ; CHECK: ret i80 -450681596205739728166896
+        ;                0xA0908070605040302010
+        %Z = call i80 @llvm.bswap.i80( i80 76151636403560493650080 )
+        ;                                  0x102030405060708090A0
+        ret i80 %Z
+}