diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp index fa41f880e3ab5ad0c41ea3b69e080e59aa4fa068..1a0ffe4e176b1fe129ff6aee53c650ad38d56778 100644 --- a/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -2459,7 +2459,7 @@ void ARMDAGToDAGISel::SelectCMPZ(SDNode *N, bool &SwitchEQNEToPLMI) { SDValue X = And.getOperand(0); auto C = dyn_cast<ConstantSDNode>(And.getOperand(1)); - if (!C || !X->hasOneUse()) + if (!C) return; auto Range = getContiguousRangeOfSetBits(C->getAPIntValue()); if (!Range) diff --git a/test/CodeGen/ARM/and-cmpz.ll b/test/CodeGen/ARM/and-cmpz.ll index 809dc6cc6ba129a213dfe656f33f5655fc2d33e3..6cc3d39b58ca5538864196e1d692b155835a9361 100644 --- a/test/CodeGen/ARM/and-cmpz.ll +++ b/test/CodeGen/ARM/and-cmpz.ll @@ -18,6 +18,24 @@ false: ret i32 2 } +; CHECK-LABEL: single_bit_multi_use: +; CHECK: lsls r0, r0, #23 +; T2-NEXT: mov +; T2-NEXT: it +; T1-NEXT: bmi +define i32 @single_bit_multi_use(i32 %p, i32* %z) { + store i32 %p, i32* %z + %a = and i32 %p, 256 + %b = icmp eq i32 %a, 0 + br i1 %b, label %true, label %false + +true: + ret i32 1 + +false: + ret i32 2 +} + ; CHECK-LABEL: multi_bit_lsb_ubfx: ; CHECK: lsls r0, r0, #24 ; T2-NEXT: mov diff --git a/test/CodeGen/ARM/load_i1_select.ll b/test/CodeGen/ARM/load_i1_select.ll index 48cd4eae58fa809776d7074f9754741caf3fe9da..459b121ce1de10cab2b1b201ebbef22f0133bb49 100644 --- a/test/CodeGen/ARM/load_i1_select.ll +++ b/test/CodeGen/ARM/load_i1_select.ll @@ -8,7 +8,7 @@ target triple = "thumbv7-apple-ios0.0.0" ; CHECK-LABEL: foo: ; CHECK: ldrb r[[R0:[0-9]+]], [r0] -; CHECK: tst.w r[[R0]], #1 +; CHECK: lsls r{{[0-9]+}}, r[[R0]], #31 define void @foo(i8* %call, double* %p) nounwind { entry: %tmp2 = load i8, i8* %call diff --git a/test/CodeGen/Thumb/thumb-shrink-wrapping.ll b/test/CodeGen/Thumb/thumb-shrink-wrapping.ll index 5d93f30f417e2d4063e4d552fbbf96aa47b62809..d334706c8e84955fdf298a63c53ef5acd11fa75e 100644 --- a/test/CodeGen/Thumb/thumb-shrink-wrapping.ll +++ b/test/CodeGen/Thumb/thumb-shrink-wrapping.ll @@ -646,12 +646,12 @@ define i1 @beq_to_bx(i32* %y, i32 %head) { ; CHECK-NEXT: beq [[EXIT_LABEL:LBB[0-9_]+]] ; ENABLE: push {r4, lr} -; CHECK: tst r3, r4 +; CHECK: lsls r4, r3, #30 ; ENABLE-NEXT: ldr [[POP:r[4567]]], [sp, #4] ; ENABLE-NEXT: mov lr, [[POP]] ; ENABLE-NEXT: pop {[[POP]]} ; ENABLE-NEXT: add sp, #4 -; CHECK-NEXT: beq [[EXIT_LABEL]] +; CHECK-NEXT: bpl [[EXIT_LABEL]] ; CHECK: str r1, [r2] ; CHECK: str r3, [r2]