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120 lines
3.5 KiB
LLVM
120 lines
3.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc --mtriple=loongarch32 < %s | FileCheck %s --check-prefix=LA32
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; RUN: llc --mtriple=loongarch64 < %s | FileCheck %s --check-prefix=LA64
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;; Check that ldptr.w is not emitted for small offsets.
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define signext i32 @ldptr_w_too_small_offset(ptr %p) nounwind {
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; LA32-LABEL: ldptr_w_too_small_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: ld.w $a0, $a0, 2044
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; LA32-NEXT: ret
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;
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; LA64-LABEL: ldptr_w_too_small_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: ld.w $a0, $a0, 2044
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr inbounds i32, ptr %p, i64 511
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%val = load i32, ptr %addr, align 4
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ret i32 %val
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}
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;; Check that ldptr.w is emitted for applicable offsets.
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define signext i32 @ldptr_w(ptr %p) nounwind {
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; LA32-LABEL: ldptr_w:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: addi.w $a0, $a0, 2047
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; LA32-NEXT: addi.w $a0, $a0, 1
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; LA32-NEXT: ld.w $a0, $a0, 0
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; LA32-NEXT: ret
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;
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; LA64-LABEL: ldptr_w:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: ldptr.w $a0, $a0, 2048
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr inbounds i32, ptr %p, i64 512
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%val = load i32, ptr %addr, align 4
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ret i32 %val
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}
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;; Check that ldptr.w is not emitted for out-of-range offsets.
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define signext i32 @ldptr_w_too_big_offset(ptr %p) nounwind {
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; LA32-LABEL: ldptr_w_too_big_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: lu12i.w $a1, 8
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; LA32-NEXT: add.w $a0, $a0, $a1
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; LA32-NEXT: ld.w $a0, $a0, 0
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; LA32-NEXT: ret
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;
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; LA64-LABEL: ldptr_w_too_big_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: lu12i.w $a1, 8
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; LA64-NEXT: ldx.w $a0, $a0, $a1
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr inbounds i32, ptr %p, i64 8192
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%val = load i32, ptr %addr, align 4
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ret i32 %val
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}
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;; Check that ldptr.d is not emitted for small offsets.
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define i64 @ldptr_d_too_small_offset(ptr %p) nounwind {
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; LA32-LABEL: ldptr_d_too_small_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: ld.w $a2, $a0, 2040
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; LA32-NEXT: ld.w $a1, $a0, 2044
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; LA32-NEXT: move $a0, $a2
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; LA32-NEXT: ret
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;
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; LA64-LABEL: ldptr_d_too_small_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: ld.d $a0, $a0, 2040
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr inbounds i64, ptr %p, i64 255
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%val = load i64, ptr %addr, align 8
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ret i64 %val
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}
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;; Check that ldptr.d is emitted for applicable offsets.
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define i64 @ldptr_d(ptr %p) nounwind {
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; LA32-LABEL: ldptr_d:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: addi.w $a0, $a0, 2047
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; LA32-NEXT: addi.w $a1, $a0, 1
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; LA32-NEXT: ld.w $a0, $a1, 0
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; LA32-NEXT: ld.w $a1, $a1, 4
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; LA32-NEXT: ret
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;
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; LA64-LABEL: ldptr_d:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: ldptr.d $a0, $a0, 2048
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr inbounds i64, ptr %p, i64 256
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%val = load i64, ptr %addr, align 8
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ret i64 %val
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}
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;; Check that ldptr.d is not emitted for out-of-range offsets.
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define i64 @ldptr_d_too_big_offset(ptr %p) nounwind {
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; LA32-LABEL: ldptr_d_too_big_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: lu12i.w $a1, 8
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; LA32-NEXT: add.w $a1, $a0, $a1
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; LA32-NEXT: ld.w $a0, $a1, 0
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; LA32-NEXT: ld.w $a1, $a1, 4
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; LA32-NEXT: ret
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;
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; LA64-LABEL: ldptr_d_too_big_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: lu12i.w $a1, 8
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; LA64-NEXT: ldx.d $a0, $a0, $a1
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr inbounds i64, ptr %p, i64 4096
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%val = load i64, ptr %addr, align 8
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ret i64 %val
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}
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