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|
; 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 x14, x13, [x8, #-16]
; CHECK-NEXT: str w10, [x8]
; CHECK-NEXT: and w11, w11, w12
; CHECK-NEXT: ldrh w15, [x13, w10, uxtw #1]
; CHECK-NEXT: strh w15, [x14, w11, uxtw #1]
; CHECK-NEXT: strh w12, [x13, w10, uxtw #1]
; 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
}
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