100 lines
3.4 KiB
LLVM
100 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc --mtriple=loongarch64 < %s | FileCheck %s
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%struct.key_t = type { i32, [16 x i8] }
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declare void @llvm.memset.p0i8.i64(ptr, i8, i64, i1)
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declare void @test1(ptr)
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define i32 @test() nounwind {
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; CHECK-LABEL: test:
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; CHECK: # %bb.0:
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; CHECK-NEXT: addi.d $sp, $sp, -32
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; CHECK-NEXT: st.d $ra, $sp, 24 # 8-byte Folded Spill
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; CHECK-NEXT: st.w $zero, $sp, 16
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; CHECK-NEXT: st.d $zero, $sp, 8
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; CHECK-NEXT: st.d $zero, $sp, 0
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; CHECK-NEXT: addi.d $a0, $sp, 4
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; CHECK-NEXT: bl %plt(test1)
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; CHECK-NEXT: move $a0, $zero
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; CHECK-NEXT: ld.d $ra, $sp, 24 # 8-byte Folded Reload
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; CHECK-NEXT: addi.d $sp, $sp, 32
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; CHECK-NEXT: ret
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%key = alloca %struct.key_t, align 4
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call void @llvm.memset.p0i8.i64(ptr %key, i8 0, i64 20, i1 false)
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%1 = getelementptr inbounds %struct.key_t, ptr %key, i64 0, i32 1, i64 0
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call void @test1(ptr %1)
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ret i32 0
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}
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;; Note: will create an emergency spill slot, if (!isInt<11>(StackSize)).
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;; Should involve only one SP-adjusting addi per adjustment.
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define void @test_large_frame_size_2032() {
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; CHECK-LABEL: test_large_frame_size_2032:
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; CHECK: # %bb.0:
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; CHECK-NEXT: addi.d $sp, $sp, -2032
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; CHECK-NEXT: .cfi_def_cfa_offset 2032
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; CHECK-NEXT: addi.d $sp, $sp, 2032
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; CHECK-NEXT: ret
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%1 = alloca i8, i32 2016 ; + 16(emergency slot) = 2032
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ret void
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}
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;; Should involve two SP-adjusting addi's when adjusting SP up, but only one
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;; when adjusting down.
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define void @test_large_frame_size_2048() {
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; CHECK-LABEL: test_large_frame_size_2048:
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; CHECK: # %bb.0:
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; CHECK-NEXT: addi.d $sp, $sp, -2048
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; CHECK-NEXT: .cfi_def_cfa_offset 2048
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; CHECK-NEXT: addi.d $sp, $sp, 2032
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; CHECK-NEXT: addi.d $sp, $sp, 16
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; CHECK-NEXT: ret
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%1 = alloca i8, i32 2032 ; + 16(emergency slot) = 2048
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ret void
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}
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;; Should involve two SP-adjusting addi's per adjustment.
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define void @test_large_frame_size_2064() {
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; CHECK-LABEL: test_large_frame_size_2064:
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; CHECK: # %bb.0:
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; CHECK-NEXT: addi.d $sp, $sp, -2048
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; CHECK-NEXT: addi.d $sp, $sp, -16
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; CHECK-NEXT: .cfi_def_cfa_offset 2064
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; CHECK-NEXT: addi.d $sp, $sp, 2032
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; CHECK-NEXT: addi.d $sp, $sp, 32
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; CHECK-NEXT: ret
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%1 = alloca i8, i32 2048 ; + 16(emergency slot) = 2064
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ret void
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}
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;; NOTE: Due to the problem with the emegency spill slot, the scratch register
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;; will not be used when the fp is eliminated. To make this test valid, add the
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;; attribute "frame-pointer=all".
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;; SP should be adjusted with help of a scratch register.
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define void @test_large_frame_size_1234576() "frame-pointer"="all" {
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; CHECK-LABEL: test_large_frame_size_1234576:
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; CHECK: # %bb.0:
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; CHECK-NEXT: addi.d $sp, $sp, -2032
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; CHECK-NEXT: .cfi_def_cfa_offset 2032
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; CHECK-NEXT: st.d $ra, $sp, 2024 # 8-byte Folded Spill
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; CHECK-NEXT: st.d $fp, $sp, 2016 # 8-byte Folded Spill
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; CHECK-NEXT: .cfi_offset 1, -8
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; CHECK-NEXT: .cfi_offset 22, -16
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; CHECK-NEXT: addi.d $fp, $sp, 2032
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; CHECK-NEXT: .cfi_def_cfa 22, 0
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; CHECK-NEXT: lu12i.w $a0, 300
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; CHECK-NEXT: ori $a0, $a0, 3760
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; CHECK-NEXT: sub.d $sp, $sp, $a0
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; CHECK-NEXT: lu12i.w $a0, 300
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; CHECK-NEXT: ori $a0, $a0, 3760
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; CHECK-NEXT: add.d $sp, $sp, $a0
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; CHECK-NEXT: ld.d $fp, $sp, 2016 # 8-byte Folded Reload
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; CHECK-NEXT: ld.d $ra, $sp, 2024 # 8-byte Folded Reload
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; CHECK-NEXT: addi.d $sp, $sp, 2032
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; CHECK-NEXT: ret
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%1 = alloca i8, i32 1234567
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ret void
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}
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