derek.holloway
7502bf64a4
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127 lines
3.9 KiB
LLVM
127 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
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; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme2 < %s | FileCheck %s
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define i32 @no_tpidr2_save_required() "aarch64_inout_za" {
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; CHECK-LABEL: no_tpidr2_save_required:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: mov w0, #42 // =0x2a
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; CHECK-NEXT: ret
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entry:
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ret i32 42
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}
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define float @multi_bb_stpidr2_save_required(i32 %a, float %b, float %c) "aarch64_inout_za" {
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; CHECK-LABEL: multi_bb_stpidr2_save_required:
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; CHECK: // %bb.0:
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; CHECK-NEXT: stp x29, x30, [sp, #-16]! // 16-byte Folded Spill
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; CHECK-NEXT: mov x29, sp
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; CHECK-NEXT: sub sp, sp, #16
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; CHECK-NEXT: .cfi_def_cfa w29, 16
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; CHECK-NEXT: .cfi_offset w30, -8
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; CHECK-NEXT: .cfi_offset w29, -16
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; CHECK-NEXT: rdsvl x8, #1
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; CHECK-NEXT: mov x9, sp
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; CHECK-NEXT: msub x9, x8, x8, x9
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; CHECK-NEXT: mov sp, x9
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; CHECK-NEXT: stp x9, x8, [x29, #-16]
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; CHECK-NEXT: cbz w0, .LBB1_2
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; CHECK-NEXT: // %bb.1: // %use_b
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; CHECK-NEXT: fmov s1, #4.00000000
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; CHECK-NEXT: fadd s0, s0, s1
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; CHECK-NEXT: b .LBB1_5
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; CHECK-NEXT: .LBB1_2: // %use_c
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; CHECK-NEXT: fmov s0, s1
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; CHECK-NEXT: sub x8, x29, #16
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; CHECK-NEXT: msr TPIDR2_EL0, x8
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; CHECK-NEXT: bl cosf
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; CHECK-NEXT: smstart za
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; CHECK-NEXT: mrs x8, TPIDR2_EL0
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; CHECK-NEXT: sub x0, x29, #16
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; CHECK-NEXT: cbnz x8, .LBB1_4
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; CHECK-NEXT: // %bb.3: // %use_c
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; CHECK-NEXT: bl __arm_tpidr2_restore
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; CHECK-NEXT: .LBB1_4: // %use_c
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; CHECK-NEXT: msr TPIDR2_EL0, xzr
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; CHECK-NEXT: .LBB1_5: // %exit
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; CHECK-NEXT: mov sp, x29
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; CHECK-NEXT: ldp x29, x30, [sp], #16 // 16-byte Folded Reload
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; CHECK-NEXT: ret
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%cmp = icmp ne i32 %a, 0
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br i1 %cmp, label %use_b, label %use_c
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use_b:
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%faddr = fadd float %b, 4.0
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br label %exit
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use_c:
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%res2 = call float @llvm.cos.f32(float %c)
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br label %exit
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exit:
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%ret = phi float [%faddr, %use_b], [%res2, %use_c]
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ret float %ret
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}
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define float @multi_bb_stpidr2_save_required_stackprobe(i32 %a, float %b, float %c) "aarch64_inout_za" "probe-stack"="inline-asm" "stack-probe-size"="65536" {
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; CHECK-LABEL: multi_bb_stpidr2_save_required_stackprobe:
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; CHECK: // %bb.0:
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; CHECK-NEXT: stp x29, x30, [sp, #-16]! // 16-byte Folded Spill
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; CHECK-NEXT: mov x29, sp
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; CHECK-NEXT: ldr xzr, [sp, #-16]!
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; CHECK-NEXT: .cfi_def_cfa w29, 16
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; CHECK-NEXT: .cfi_offset w30, -8
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; CHECK-NEXT: .cfi_offset w29, -16
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; CHECK-NEXT: rdsvl x8, #1
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; CHECK-NEXT: mov x9, sp
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; CHECK-NEXT: msub x9, x8, x8, x9
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; CHECK-NEXT: .LBB2_1: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: sub sp, sp, #16, lsl #12 // =65536
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; CHECK-NEXT: cmp sp, x9
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; CHECK-NEXT: b.le .LBB2_3
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; CHECK-NEXT: // %bb.2: // in Loop: Header=BB2_1 Depth=1
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; CHECK-NEXT: ldr xzr, [sp]
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; CHECK-NEXT: b .LBB2_1
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; CHECK-NEXT: .LBB2_3:
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; CHECK-NEXT: mov sp, x9
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; CHECK-NEXT: ldr xzr, [sp]
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; CHECK-NEXT: stp x9, x8, [x29, #-16]
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; CHECK-NEXT: cbz w0, .LBB2_5
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; CHECK-NEXT: // %bb.4: // %use_b
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; CHECK-NEXT: fmov s1, #4.00000000
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; CHECK-NEXT: fadd s0, s0, s1
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; CHECK-NEXT: b .LBB2_8
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; CHECK-NEXT: .LBB2_5: // %use_c
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; CHECK-NEXT: fmov s0, s1
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; CHECK-NEXT: sub x8, x29, #16
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; CHECK-NEXT: msr TPIDR2_EL0, x8
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; CHECK-NEXT: bl cosf
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; CHECK-NEXT: smstart za
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; CHECK-NEXT: mrs x8, TPIDR2_EL0
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; CHECK-NEXT: sub x0, x29, #16
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; CHECK-NEXT: cbnz x8, .LBB2_7
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; CHECK-NEXT: // %bb.6: // %use_c
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; CHECK-NEXT: bl __arm_tpidr2_restore
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; CHECK-NEXT: .LBB2_7: // %use_c
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; CHECK-NEXT: msr TPIDR2_EL0, xzr
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; CHECK-NEXT: .LBB2_8: // %exit
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; CHECK-NEXT: mov sp, x29
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; CHECK-NEXT: ldp x29, x30, [sp], #16 // 16-byte Folded Reload
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; CHECK-NEXT: ret
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%cmp = icmp ne i32 %a, 0
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br i1 %cmp, label %use_b, label %use_c
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use_b:
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%faddr = fadd float %b, 4.0
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br label %exit
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use_c:
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%res2 = call float @llvm.cos.f32(float %c)
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br label %exit
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exit:
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%ret = phi float [%faddr, %use_b], [%res2, %use_c]
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ret float %ret
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}
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declare float @llvm.cos.f32(float)
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