132 lines
3.9 KiB
LLVM
132 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc < %s -o - | FileCheck %s
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; RUN: llc -mattr=+alu-lsl-fast --aarch64-enable-sink-fold=false < %s -o - | FileCheck %s -check-prefix=LSLFAST
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target triple = "aarch64-linux"
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declare void @g(...)
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; Check that ADDWrs/ADDXrs with shift > 4 is considered relatively
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; slow, thus CSE-d.
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define void @f0(i1 %c0, i1 %c1, ptr %a, i64 %i) {
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; CHECK-LABEL: f0:
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; CHECK: // %bb.0: // %E
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; CHECK-NEXT: tbz w0, #0, .LBB0_5
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; CHECK-NEXT: // %bb.1: // %A
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; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: .cfi_offset w30, -16
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; CHECK-NEXT: add x0, x2, x3, lsl #5
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; CHECK-NEXT: tbz w1, #0, .LBB0_3
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; CHECK-NEXT: // %bb.2: // %B
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; CHECK-NEXT: bl g
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; CHECK-NEXT: b .LBB0_4
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; CHECK-NEXT: .LBB0_3: // %C
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; CHECK-NEXT: mov x1, x0
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; CHECK-NEXT: bl g
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; CHECK-NEXT: .LBB0_4:
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; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECK-NEXT: .LBB0_5: // %X
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; CHECK-NEXT: ret
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;
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; LSLFAST-LABEL: f0:
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; LSLFAST: // %bb.0: // %E
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; LSLFAST-NEXT: tbz w0, #0, .LBB0_5
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; LSLFAST-NEXT: // %bb.1: // %A
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; LSLFAST-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; LSLFAST-NEXT: .cfi_def_cfa_offset 16
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; LSLFAST-NEXT: .cfi_offset w30, -16
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; LSLFAST-NEXT: add x0, x2, x3, lsl #5
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; LSLFAST-NEXT: tbz w1, #0, .LBB0_3
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; LSLFAST-NEXT: // %bb.2: // %B
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; LSLFAST-NEXT: bl g
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; LSLFAST-NEXT: b .LBB0_4
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; LSLFAST-NEXT: .LBB0_3: // %C
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; LSLFAST-NEXT: mov x1, x0
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; LSLFAST-NEXT: bl g
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; LSLFAST-NEXT: .LBB0_4:
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; LSLFAST-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; LSLFAST-NEXT: .LBB0_5: // %X
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; LSLFAST-NEXT: ret
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E:
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%p0 = getelementptr {i64, i64, i64, i64}, ptr %a, i64 %i
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br i1 %c0, label %A, label %X
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A:
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br i1 %c1, label %B, label %C
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B:
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call void @g(ptr %p0)
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br label %X
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C:
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%p1 = getelementptr {i64, i64, i64, i64}, ptr %a, i64 %i
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call void @g(ptr %p1, ptr %p0)
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br label %X
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X:
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ret void
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}
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; Check that ADDWrs/ADDXrs with shift <= 4 is considered relatively fast on sub-targets
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; with feature +alu-lsl-fast, thus *not* CSE-d.
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define void @f1(i1 %c0, i1 %c1, ptr %a, i64 %i) {
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; CHECK-LABEL: f1:
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; CHECK: // %bb.0: // %E
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; CHECK-NEXT: tbz w0, #0, .LBB1_5
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; CHECK-NEXT: // %bb.1: // %A
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; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: .cfi_offset w30, -16
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; CHECK-NEXT: add x0, x2, x3, lsl #4
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; CHECK-NEXT: tbz w1, #0, .LBB1_3
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; CHECK-NEXT: // %bb.2: // %B
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; CHECK-NEXT: bl g
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; CHECK-NEXT: b .LBB1_4
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; CHECK-NEXT: .LBB1_3: // %C
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; CHECK-NEXT: mov x1, x0
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; CHECK-NEXT: bl g
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; CHECK-NEXT: .LBB1_4:
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; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECK-NEXT: .LBB1_5: // %X
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; CHECK-NEXT: ret
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;
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; LSLFAST-LABEL: f1:
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; LSLFAST: // %bb.0: // %E
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; LSLFAST-NEXT: tbz w0, #0, .LBB1_5
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; LSLFAST-NEXT: // %bb.1: // %A
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; LSLFAST-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; LSLFAST-NEXT: .cfi_def_cfa_offset 16
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; LSLFAST-NEXT: .cfi_offset w30, -16
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; LSLFAST-NEXT: add x8, x2, x3, lsl #4
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; LSLFAST-NEXT: tbz w1, #0, .LBB1_3
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; LSLFAST-NEXT: // %bb.2: // %B
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; LSLFAST-NEXT: mov x0, x8
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; LSLFAST-NEXT: bl g
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; LSLFAST-NEXT: b .LBB1_4
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; LSLFAST-NEXT: .LBB1_3: // %C
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; LSLFAST-NEXT: add x0, x2, x3, lsl #4
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; LSLFAST-NEXT: mov x1, x8
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; LSLFAST-NEXT: bl g
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; LSLFAST-NEXT: .LBB1_4:
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; LSLFAST-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; LSLFAST-NEXT: .LBB1_5: // %X
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; LSLFAST-NEXT: ret
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E:
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%p0 = getelementptr {i64, i64}, ptr %a, i64 %i
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br i1 %c0, label %A, label %X
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A:
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br i1 %c1, label %B, label %C
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B:
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call void @g(ptr %p0)
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br label %X
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C:
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%p1 = getelementptr {i64, i64}, ptr %a, i64 %i
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call void @g(ptr %p1, ptr %p0)
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br label %X
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X:
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ret void
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}
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