db158c7c83
Refresh of the generic scheduling model to use A510 instead of A55. Main benefits are to the little core, and introducing SVE scheduling information. Changes tested on various OoO cores, no performance degradation is seen. Differential Revision: https://reviews.llvm.org/D156799
99 lines
3.2 KiB
LLVM
99 lines
3.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -O2 < %s -mtriple=aarch64-linux-gnu | FileCheck %s --check-prefix=CHECKN
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; RUN: llc -O2 < %s -mtriple=aarch64-linux-gnu -mattr=strict-align | FileCheck %s --check-prefix=CHECKS
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declare i32 @bcmp(ptr, ptr, i64) nounwind readonly
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declare i32 @memcmp(ptr, ptr, i64) nounwind readonly
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define i1 @test_b2(ptr %s1, ptr %s2) {
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; CHECKN-LABEL: test_b2:
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; CHECKN: // %bb.0: // %entry
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; CHECKN-NEXT: ldr x8, [x0]
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; CHECKN-NEXT: ldr x9, [x1]
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; CHECKN-NEXT: ldur x10, [x0, #7]
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; CHECKN-NEXT: ldur x11, [x1, #7]
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; CHECKN-NEXT: cmp x8, x9
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; CHECKN-NEXT: ccmp x10, x11, #0, eq
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; CHECKN-NEXT: cset w0, eq
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; CHECKN-NEXT: ret
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;
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; CHECKS-LABEL: test_b2:
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; CHECKS: // %bb.0: // %entry
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; CHECKS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; CHECKS-NEXT: .cfi_def_cfa_offset 16
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; CHECKS-NEXT: .cfi_offset w30, -16
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; CHECKS-NEXT: mov w2, #15 // =0xf
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; CHECKS-NEXT: bl bcmp
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; CHECKS-NEXT: cmp w0, #0
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; CHECKS-NEXT: cset w0, eq
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; CHECKS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECKS-NEXT: ret
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entry:
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%bcmp = call i32 @bcmp(ptr %s1, ptr %s2, i64 15)
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%ret = icmp eq i32 %bcmp, 0
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ret i1 %ret
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}
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; TODO: Four loads should be within the limit, but the heuristic isn't implemented.
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define i1 @test_b2_align8(ptr align 8 %s1, ptr align 8 %s2) {
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; CHECKN-LABEL: test_b2_align8:
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; CHECKN: // %bb.0: // %entry
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; CHECKN-NEXT: ldr x8, [x0]
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; CHECKN-NEXT: ldr x9, [x1]
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; CHECKN-NEXT: ldur x10, [x0, #7]
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; CHECKN-NEXT: ldur x11, [x1, #7]
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; CHECKN-NEXT: cmp x8, x9
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; CHECKN-NEXT: ccmp x10, x11, #0, eq
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; CHECKN-NEXT: cset w0, eq
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; CHECKN-NEXT: ret
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;
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; CHECKS-LABEL: test_b2_align8:
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; CHECKS: // %bb.0: // %entry
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; CHECKS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; CHECKS-NEXT: .cfi_def_cfa_offset 16
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; CHECKS-NEXT: .cfi_offset w30, -16
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; CHECKS-NEXT: mov w2, #15 // =0xf
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; CHECKS-NEXT: bl bcmp
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; CHECKS-NEXT: cmp w0, #0
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; CHECKS-NEXT: cset w0, eq
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; CHECKS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECKS-NEXT: ret
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entry:
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%bcmp = call i32 @bcmp(ptr %s1, ptr %s2, i64 15)
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%ret = icmp eq i32 %bcmp, 0
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ret i1 %ret
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}
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define i1 @test_bs(ptr %s1, ptr %s2) optsize {
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; CHECKN-LABEL: test_bs:
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; CHECKN: // %bb.0: // %entry
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; CHECKN-NEXT: ldp x8, x11, [x1]
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; CHECKN-NEXT: ldr x12, [x0, #16]
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; CHECKN-NEXT: ldp x9, x10, [x0]
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; CHECKN-NEXT: ldr x13, [x1, #16]
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; CHECKN-NEXT: cmp x9, x8
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; CHECKN-NEXT: ldur x8, [x0, #23]
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; CHECKN-NEXT: ldur x9, [x1, #23]
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; CHECKN-NEXT: ccmp x10, x11, #0, eq
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; CHECKN-NEXT: ccmp x12, x13, #0, eq
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; CHECKN-NEXT: ccmp x8, x9, #0, eq
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; CHECKN-NEXT: cset w0, eq
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; CHECKN-NEXT: ret
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;
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; CHECKS-LABEL: test_bs:
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; CHECKS: // %bb.0: // %entry
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; CHECKS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; CHECKS-NEXT: .cfi_def_cfa_offset 16
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; CHECKS-NEXT: .cfi_offset w30, -16
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; CHECKS-NEXT: mov w2, #31 // =0x1f
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; CHECKS-NEXT: bl memcmp
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; CHECKS-NEXT: cmp w0, #0
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; CHECKS-NEXT: cset w0, eq
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; CHECKS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECKS-NEXT: ret
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entry:
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%memcmp = call i32 @memcmp(ptr %s1, ptr %s2, i64 31)
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%ret = icmp eq i32 %memcmp, 0
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ret i1 %ret
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}
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