Fix pointer info on PPC byval stores

[oota-llvm.git] / test / Transforms / InstCombine / bswap-fold.ll

diff --git a/test/Transforms/InstCombine/bswap-fold.ll b/test/Transforms/InstCombine/bswap-fold.ll
index eb7539c1dd9ab640e0a38519769719ae4ec7845b..442ce58421e1686fa3c77970fbf56aad9fc7fd08 100644 (file)
--- a/test/Transforms/InstCombine/bswap-fold.ll
+++ b/test/Transforms/InstCombine/bswap-fold.ll
@@ -1,26 +1,71 @@
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep ret | wc -l | grep 3 &&
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep 'call.*bswap'
+; RUN: opt < %s -instcombine -S | not grep call.*bswap
 
-bool %test1(ushort %tmp2) {
-       %tmp10 = call ushort %llvm.bswap.i16( ushort %tmp2 )            
-       %tmp = seteq ushort %tmp10, 1           
-       ret bool %tmp
+define i1 @test1(i16 %tmp2) {
+        %tmp10 = call i16 @llvm.bswap.i16( i16 %tmp2 )
+        %tmp = icmp eq i16 %tmp10, 1
+        ret i1 %tmp
 }
 
-bool %test2(uint %tmp) {
-       %tmp34 = tail call uint %llvm.bswap.i32( uint %tmp )            
-       %tmp = seteq uint %tmp34, 1             
-       ret bool %tmp
+define i1 @test2(i32 %tmp) {
+        %tmp34 = tail call i32 @llvm.bswap.i32( i32 %tmp )
+        %tmp.upgrd.1 = icmp eq i32 %tmp34, 1
+        ret i1 %tmp.upgrd.1
 }
 
-declare uint %llvm.bswap.i32(uint)
+declare i32 @llvm.bswap.i32(i32)
 
-bool %test3(ulong %tmp) {
-       %tmp34 = tail call ulong %llvm.bswap.i64( ulong %tmp )          
-       %tmp = seteq ulong %tmp34, 1            
-       ret bool %tmp
+define i1 @test3(i64 %tmp) {
+        %tmp34 = tail call i64 @llvm.bswap.i64( i64 %tmp )
+        %tmp.upgrd.2 = icmp eq i64 %tmp34, 1
+        ret i1 %tmp.upgrd.2
 }
 
-declare ulong %llvm.bswap.i64(ulong)
+declare i64 @llvm.bswap.i64(i64)
 
-declare ushort %llvm.bswap.i16(ushort)
+declare i16 @llvm.bswap.i16(i16)
+
+; rdar://5992453
+; A & 255
+define i32 @test4(i32 %a) nounwind  {
+entry:
+       %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a ) 
+       %tmp4 = lshr i32 %tmp2, 24
+       ret i32 %tmp4
+}
+
+; A
+define i32 @test5(i32 %a) nounwind  {
+entry:
+       %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
+       %tmp4 = tail call i32 @llvm.bswap.i32( i32 %tmp2 )
+       ret i32 %tmp4
+}
+
+; a >> 24
+define i32 @test6(i32 %a) nounwind  {
+entry:
+       %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a ) 
+       %tmp4 = and i32 %tmp2, 255
+       ret i32 %tmp4
+}
+
+; PR5284
+define i16 @test7(i32 %A) {
+  %B = tail call i32 @llvm.bswap.i32(i32 %A) nounwind 
+  %C = trunc i32 %B to i16
+  %D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
+  ret i16 %D
+}
+
+define i16 @test8(i64 %A) {
+  %B = tail call i64 @llvm.bswap.i64(i64 %A) nounwind 
+  %C = trunc i64 %B to i16
+  %D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
+  ret i16 %D
+}
+
+; Misc: Fold bswap(undef) to undef.
+define i64 @foo() {
+  %a = call i64 @llvm.bswap.i64(i64 undef)
+  ret i64 %a
+}