Index: lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp =================================================================== --- lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp +++ lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp @@ -300,6 +300,7 @@ Lo = DAG.getVAArg(NVT, dl, Chain, Ptr, N->getOperand(2), Align); Hi = DAG.getVAArg(NVT, dl, Lo.getValue(1), Ptr, N->getOperand(2), 0); + Chain = Hi.getValue(1); // Handle endianness of the load. if (TLI.hasBigEndianPartOrdering(OVT, DAG.getDataLayout())) @@ -307,7 +308,7 @@ // Modified the chain - switch anything that used the old chain to use // the new one. - ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); + ReplaceValueWith(SDValue(N, 1), Chain); } Index: test/CodeGen/SPARC/varargs-v8.ll =================================================================== --- /dev/null +++ test/CodeGen/SPARC/varargs-v8.ll @@ -0,0 +1,24 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=sparc -disable-sparc-leaf-proc | FileCheck %s + +define i32 @test(i32 %a, i8* %va) nounwind { +; CHECK-LABEL: test: +; CHECK: ! %bb.0: ! %entry +; CHECK-NEXT: save %sp, -96, %sp +; CHECK-NEXT: add %i1, 8, %i0 +; CHECK-NEXT: st %i0, [%fp+-4] +; CHECK-NEXT: ld [%i1+4], %i0 +; CHECK-NEXT: add %i1, 12, %i2 +; CHECK-NEXT: st %i2, [%fp+-4] +; CHECK-NEXT: ld [%i1+8], %i1 +; CHECK-NEXT: ret +; CHECK-NEXT: restore %i1, %i0, %o0 +entry: + %va.addr = alloca i8*, align 4 + store i8* %va, i8** %va.addr, align 4 + %0 = va_arg i8** %va.addr, i64 + %conv1 = trunc i64 %0 to i32 + %1 = va_arg i8** %va.addr, i32 + %add3 = add nsw i32 %1, %conv1 + ret i32 %add3 +}