expand ISD::VACOPY

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31170 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 43f54acd1cefc16b3d7b93b05388f8adb0a7bd39..b57bf59c2277577558afe00bb19eab35e22de830 100644 (file)
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -89,6 +89,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
   setOperationAction(ISD::UREM,      MVT::i32, Expand);
 
   setOperationAction(ISD::VASTART,       MVT::Other, Custom);
+  setOperationAction(ISD::VACOPY,            MVT::Other, Expand);
   setOperationAction(ISD::VAEND,         MVT::Other, Expand);
 
   setOperationAction(ISD::ConstantFP, MVT::f64, Expand);

diff --git a/test/CodeGen/ARM/vargs2.ll b/test/CodeGen/ARM/vargs2.ll
index 7f8d82ea2aa510be560c3b68ac683400bcab7af9..232149cc8dc6d580b607d89922b5d1a1141ea3dd 100644 (file)
--- a/test/CodeGen/ARM/vargs2.ll
+++ b/test/CodeGen/ARM/vargs2.ll
@@ -1,33 +1,51 @@
 ; RUN: llvm-as < %s | llc -march=arm
-%str = internal constant [4 x sbyte] c"%d\0A\00"               ; <[4 x sbyte]*> [#uses=1]
+%str = internal constant [7 x ubyte] c"%d %d\0A\00"            ; <[7 x ubyte]*> [#uses=1]
 
 implementation   ; Functions:
 
 void %f(int %a, ...) {
 entry:
-       %va = alloca sbyte*, align 4            ; <sbyte**> [#uses=4]
-       call void %llvm.va_start( sbyte** %va )
-       br label %bb
+       %a = cast int %a to uint                ; <uint> [#uses=1]
+       %l1 = alloca sbyte*, align 4            ; <sbyte**> [#uses=5]
+       %l2 = alloca sbyte*, align 4            ; <sbyte**> [#uses=4]
+       %memtmp = alloca sbyte*         ; <sbyte**> [#uses=2]
+       call void %llvm.va_start( sbyte** %l1 )
+       %tmp22 = seteq int %a, 0                ; <bool> [#uses=1]
+       %tmp23 = volatile load sbyte** %l1              ; <sbyte*> [#uses=2]
+       br bool %tmp22, label %bb8, label %bb
 
 bb:            ; preds = %bb, %entry
-       %a_addr.0 = phi int [ %a, %entry ], [ %tmp5, %bb ]              ; <int> [#uses=2]
-       %tmp = volatile load sbyte** %va                ; <sbyte*> [#uses=2]
-       %tmp2 = getelementptr sbyte* %tmp, int 4                ; <sbyte*> [#uses=1]
-       volatile store sbyte* %tmp2, sbyte** %va
-       %tmp5 = add int %a_addr.0, -1           ; <int> [#uses=1]
-       %tmp = seteq int %a_addr.0, 1           ; <bool> [#uses=1]
-       br bool %tmp, label %bb7, label %bb
-
-bb7:           ; preds = %bb
-       %tmp3 = cast sbyte* %tmp to int*                ; <int*> [#uses=1]
+       %indvar = phi uint [ 0, %entry ], [ %indvar.next, %bb ]         ; <uint> [#uses=1]
+       %tmp.0 = phi sbyte* [ %tmp23, %entry ], [ %tmp, %bb ]           ; <sbyte*> [#uses=2]
+       %tmp2 = getelementptr sbyte* %tmp.0, int 4              ; <sbyte*> [#uses=1]
+       volatile store sbyte* %tmp2, sbyte** %l1
+       %tmp3 = cast sbyte* %tmp.0 to int*              ; <int*> [#uses=1]
        %tmp = load int* %tmp3          ; <int> [#uses=1]
-       %tmp10 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %str, int 0, uint 0), int %tmp )           ; <int> [#uses=0]
-       call void %llvm.va_end( sbyte** %va )
+       %tmp = volatile load sbyte** %l1                ; <sbyte*> [#uses=2]
+       %indvar.next = add uint %indvar, 1              ; <uint> [#uses=2]
+       %exitcond = seteq uint %indvar.next, %a         ; <bool> [#uses=1]
+       br bool %exitcond, label %bb8, label %bb
+
+bb8:           ; preds = %bb, %entry
+       %p1.0.1 = phi int [ undef, %entry ], [ %tmp, %bb ]              ; <int> [#uses=1]
+       %tmp.1 = phi sbyte* [ %tmp23, %entry ], [ %tmp, %bb ]           ; <sbyte*> [#uses=1]
+       store sbyte* %tmp.1, sbyte** %memtmp
+       call void %llvm.va_copy( sbyte** %l2, sbyte** %memtmp )
+       %tmp10 = volatile load sbyte** %l2              ; <sbyte*> [#uses=2]
+       %tmp12 = getelementptr sbyte* %tmp10, int 4             ; <sbyte*> [#uses=1]
+       volatile store sbyte* %tmp12, sbyte** %l2
+       %tmp13 = cast sbyte* %tmp10 to int*             ; <int*> [#uses=1]
+       %tmp14 = load int* %tmp13               ; <int> [#uses=1]
+       %tmp17 = call int (ubyte*, ...)* %printf( ubyte* getelementptr ([7 x ubyte]* %str, int 0, uint 0), int %p1.0.1, int %tmp14 )            ; <int> [#uses=0]
+       call void %llvm.va_end( sbyte** %l1 )
+       call void %llvm.va_end( sbyte** %l2 )
        ret void
 }
 
 declare void %llvm.va_start(sbyte**)
 
-declare int %printf(sbyte*, ...)
+declare void %llvm.va_copy(sbyte**, sbyte**)
+
+declare int %printf(ubyte*, ...)
 
 declare void %llvm.va_end(sbyte**)