; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4 ; RUN: llc -mtriple=arm64-apple-macosx -o - %s | FileCheck %s %struct.zot = type { ptr, i32, ptr, ptr, i32, i32, i32, i32, i32, i32 } ; FIXME: currently the AND is performed on 64 bit unnecessarily. ; Test cases where an AND is extended from i32 -> i64 which is free. Make ; sure the extends do not get moved to the arguments, which would perform the ; AND on 64 bits unnecessarily. define void @avoid_promotion_1_and(ptr nocapture noundef %arg, ptr %p) { ; CHECK-LABEL: avoid_promotion_1_and: ; CHECK: ; %bb.0: ; %bb ; CHECK-NEXT: ldr w8, [x0, #52] ; CHECK-NEXT: mov w9, #10 ; =0xa ; CHECK-NEXT: LBB0_1: ; %bb8 ; CHECK-NEXT: ; =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: cmp w8, #3 ; CHECK-NEXT: b.lo LBB0_1 ; CHECK-NEXT: ; %bb.2: ; %bb9 ; CHECK-NEXT: ; in Loop: Header=BB0_1 Depth=1 ; CHECK-NEXT: ldr w10, [x0, #32] ; CHECK-NEXT: ldr w11, [x1, #76] ; CHECK-NEXT: ldr w12, [x1] ; CHECK-NEXT: eor w10, w10, w11 ; CHECK-NEXT: and w10, w10, w12 ; CHECK-NEXT: str w10, [x0, #32] ; CHECK-NEXT: strh w9, [x1, w10, uxtw #1] ; CHECK-NEXT: b LBB0_1 bb: %gep = getelementptr inbounds %struct.zot, ptr %arg, i64 0, i32 9 %l = load i32, ptr %gep, align 4 %icmp = icmp ugt i32 %l, 2 %gep1 = getelementptr inbounds %struct.zot, ptr %arg, i64 0, i32 4 %gep2 = getelementptr inbounds %struct.zot, ptr %arg, i64 0, i32 7 br label %bb8 bb8: ; preds = %bb27, %bb br i1 %icmp, label %bb9, label %bb27 bb9: ; preds = %bb8 %l10 = load i32, ptr %gep1, align 8 %gep14 = getelementptr inbounds i32, ptr %p, i64 19 %l15 = load i32, ptr %gep14, align 1 %xor = xor i32 %l10, %l15 %l17 = load i32, ptr %p, align 8 %and = and i32 %xor, %l17 store i32 %and, ptr %gep1, align 8 %zext19 = zext i32 %and to i64 %gep20 = getelementptr inbounds i16, ptr %p, i64 %zext19 store i16 10, ptr %gep20, align 2 br label %bb27 bb27: ; preds = %bb9, %bb8 br label %bb8 } define void @avoid_promotion_2_and(ptr nocapture noundef %arg) { ; CHECK-LABEL: avoid_promotion_2_and: ; CHECK: ; %bb.0: ; %entry ; CHECK-NEXT: add x8, x0, #32 ; CHECK-NEXT: b LBB1_2 ; CHECK-NEXT: LBB1_1: ; %latch ; CHECK-NEXT: ; in Loop: Header=BB1_2 Depth=1 ; CHECK-NEXT: cmp w9, #2 ; CHECK-NEXT: add x8, x8, #56 ; CHECK-NEXT: b.ls LBB1_4 ; CHECK-NEXT: LBB1_2: ; %loop ; CHECK-NEXT: ; =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: ldr w9, [x8, #20] ; CHECK-NEXT: cmp w9, #3 ; CHECK-NEXT: b.lo LBB1_1 ; CHECK-NEXT: ; %bb.3: ; %then ; CHECK-NEXT: ; in Loop: Header=BB1_2 Depth=1 ; CHECK-NEXT: ldp w13, w12, [x8, #12] ; CHECK-NEXT: ldr w10, [x8] ; CHECK-NEXT: ldr x11, [x0] ; CHECK-NEXT: ldr w14, [x8, #8] ; CHECK-NEXT: lsl w10, w10, w13 ; CHECK-NEXT: ldrb w11, [x11, x12] ; CHECK-NEXT: eor w10, w10, w11 ; CHECK-NEXT: ldur w11, [x8, #-24] ; CHECK-NEXT: and w10, w10, w14 ; CHECK-NEXT: ldp x15, x14, [x8, #-16] ; CHECK-NEXT: ubfiz x13, x10, #1, #32 ; CHECK-NEXT: str w10, [x8] ; CHECK-NEXT: and w10, w11, w12 ; CHECK-NEXT: ldrh w11, [x14, x13] ; CHECK-NEXT: strh w11, [x15, w10, uxtw #1] ; CHECK-NEXT: strh w12, [x14, x13] ; CHECK-NEXT: b LBB1_1 ; CHECK-NEXT: LBB1_4: ; %exit ; CHECK-NEXT: ret entry: br label %loop loop: %p = phi i64 [ 0, %entry ], [ %p.next, %latch ] %gep = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 9 %l = load i32, ptr %gep, align 4 %icmp = icmp ugt i32 %l, 2 %gep1 = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 4 %gep2 = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 7 %gep3 = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 8 %gep4 = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 6 %gep5 = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 3 %gep6 = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 2 %gep7 = getelementptr inbounds %struct.zot, ptr %arg, i64 %p, i32 1 br i1 %icmp, label %then, label %latch then: %l10 = load i32, ptr %gep1, align 8 %l11 = load i32, ptr %gep2, align 4 %shl = shl i32 %l10, %l11 %l12 = load ptr, ptr %arg, align 8 %l13 = load i32, ptr %gep3, align 8 %zext = zext i32 %l13 to i64 %gep14 = getelementptr inbounds i8, ptr %l12, i64 %zext %l15 = load i8, ptr %gep14, align 1 %zext16 = zext i8 %l15 to i32 %xor = xor i32 %shl, %zext16 %l17 = load i32, ptr %gep4, align 8 %and = and i32 %xor, %l17 store i32 %and, ptr %gep1, align 8 %l18 = load ptr, ptr %gep5, align 8 %zext19 = zext i32 %and to i64 %gep20 = getelementptr inbounds i16, ptr %l18, i64 %zext19 %l21 = load i16, ptr %gep20, align 2 %l22 = load ptr, ptr %gep6, align 8 %l23 = load i32, ptr %gep7, align 8 %and24 = and i32 %l23, %l13 %zext25 = zext i32 %and24 to i64 %gep26 = getelementptr inbounds i16, ptr %l22, i64 %zext25 store i16 %l21, ptr %gep26, align 2 %trunc = trunc i32 %l13 to i16 store i16 %trunc, ptr %gep20, align 2 br label %latch latch: %p.next = add i64 %p, 1 br i1 %icmp, label %loop, label %exit exit: ret void }