[llvm] [AArch64][SME]Check streaming mode when using SME2 instruction in fra… (PR #109680)
via llvm-commits
llvm-commits at lists.llvm.org
Fri Sep 27 02:52:49 PDT 2024
================
@@ -0,0 +1,443 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme2 -mattr=+sve -aarch64-disable-multivector-spill-fill -verify-machineinstrs < %s | FileCheck %s --check-prefixes=NOPAIR
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme -mattr=+sve -verify-machineinstrs < %s | FileCheck %s --check-prefixes=NOPAIR
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme2 -mattr=+sve -verify-machineinstrs < %s | FileCheck %s --check-prefixes=PAIR
+
+declare void @my_func()
+declare void @my_func2(<vscale x 16 x i8> %v)
+
+define void @fbyte(<vscale x 16 x i8> %v) #0{
+; NOPAIR-LABEL: fbyte:
+; NOPAIR: // %bb.0:
+; NOPAIR-NEXT: stp x29, x30, [sp, #-32]! // 16-byte Folded Spill
+; NOPAIR-NEXT: cntd x9
+; NOPAIR-NEXT: stp x9, x19, [sp, #16] // 16-byte Folded Spill
+; NOPAIR-NEXT: addvl sp, sp, #-18
+; NOPAIR-NEXT: str p15, [sp, #4, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p14, [sp, #5, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p13, [sp, #6, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p12, [sp, #7, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p11, [sp, #8, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p10, [sp, #9, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p9, [sp, #10, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p8, [sp, #11, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p7, [sp, #12, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p6, [sp, #13, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p5, [sp, #14, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p4, [sp, #15, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str z23, [sp, #2, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z22, [sp, #3, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z21, [sp, #4, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z20, [sp, #5, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z19, [sp, #6, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z18, [sp, #7, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z17, [sp, #8, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z16, [sp, #9, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z15, [sp, #10, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z14, [sp, #11, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z13, [sp, #12, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z12, [sp, #13, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z11, [sp, #14, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z10, [sp, #15, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z9, [sp, #16, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z8, [sp, #17, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: addvl sp, sp, #-1
+; NOPAIR-NEXT: str z0, [sp] // 16-byte Folded Spill
+; NOPAIR-NEXT: bl __arm_sme_state
+; NOPAIR-NEXT: and x19, x0, #0x1
+; NOPAIR-NEXT: tbz w19, #0, .LBB0_2
+; NOPAIR-NEXT: // %bb.1:
+; NOPAIR-NEXT: smstop sm
+; NOPAIR-NEXT: .LBB0_2:
+; NOPAIR-NEXT: ldr z0, [sp] // 16-byte Folded Reload
+; NOPAIR-NEXT: bl my_func2
+; NOPAIR-NEXT: tbz w19, #0, .LBB0_4
+; NOPAIR-NEXT: // %bb.3:
+; NOPAIR-NEXT: smstart sm
+; NOPAIR-NEXT: .LBB0_4:
+; NOPAIR-NEXT: addvl sp, sp, #1
+; NOPAIR-NEXT: ldr z23, [sp, #2, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z22, [sp, #3, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z21, [sp, #4, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z20, [sp, #5, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z19, [sp, #6, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z18, [sp, #7, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z17, [sp, #8, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z16, [sp, #9, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z15, [sp, #10, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z14, [sp, #11, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z13, [sp, #12, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z12, [sp, #13, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z11, [sp, #14, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z10, [sp, #15, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z9, [sp, #16, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z8, [sp, #17, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr p15, [sp, #4, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p14, [sp, #5, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p13, [sp, #6, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p12, [sp, #7, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p11, [sp, #8, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p10, [sp, #9, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p9, [sp, #10, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p8, [sp, #11, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p7, [sp, #12, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p6, [sp, #13, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p5, [sp, #14, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p4, [sp, #15, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: addvl sp, sp, #18
+; NOPAIR-NEXT: ldr x19, [sp, #24] // 8-byte Folded Reload
+; NOPAIR-NEXT: ldp x29, x30, [sp], #32 // 16-byte Folded Reload
+; NOPAIR-NEXT: ret
+;
+; PAIR-LABEL: fbyte:
+; PAIR: // %bb.0:
+; PAIR-NEXT: stp x29, x30, [sp, #-32]! // 16-byte Folded Spill
+; PAIR-NEXT: cntd x9
+; PAIR-NEXT: stp x9, x19, [sp, #16] // 16-byte Folded Spill
+; PAIR-NEXT: addvl sp, sp, #-18
+; PAIR-NEXT: str p15, [sp, #4, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p14, [sp, #5, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p13, [sp, #6, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p12, [sp, #7, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p11, [sp, #8, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p10, [sp, #9, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p9, [sp, #10, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p8, [sp, #11, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p7, [sp, #12, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p6, [sp, #13, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p5, [sp, #14, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p4, [sp, #15, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str z23, [sp, #2, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z22, [sp, #3, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z21, [sp, #4, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z20, [sp, #5, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z19, [sp, #6, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z18, [sp, #7, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z17, [sp, #8, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z16, [sp, #9, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z15, [sp, #10, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z14, [sp, #11, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z13, [sp, #12, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z12, [sp, #13, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z11, [sp, #14, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z10, [sp, #15, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z9, [sp, #16, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: str z8, [sp, #17, mul vl] // 16-byte Folded Spill
+; PAIR-NEXT: addvl sp, sp, #-1
+; PAIR-NEXT: str z0, [sp] // 16-byte Folded Spill
+; PAIR-NEXT: bl __arm_sme_state
+; PAIR-NEXT: and x19, x0, #0x1
+; PAIR-NEXT: tbz w19, #0, .LBB0_2
+; PAIR-NEXT: // %bb.1:
+; PAIR-NEXT: smstop sm
+; PAIR-NEXT: .LBB0_2:
+; PAIR-NEXT: ldr z0, [sp] // 16-byte Folded Reload
+; PAIR-NEXT: bl my_func2
+; PAIR-NEXT: tbz w19, #0, .LBB0_4
+; PAIR-NEXT: // %bb.3:
+; PAIR-NEXT: smstart sm
+; PAIR-NEXT: .LBB0_4:
+; PAIR-NEXT: addvl sp, sp, #1
+; PAIR-NEXT: ldr z23, [sp, #2, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z22, [sp, #3, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z21, [sp, #4, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z20, [sp, #5, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z19, [sp, #6, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z18, [sp, #7, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z17, [sp, #8, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z16, [sp, #9, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z15, [sp, #10, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z14, [sp, #11, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z13, [sp, #12, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z12, [sp, #13, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z11, [sp, #14, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z10, [sp, #15, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z9, [sp, #16, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr z8, [sp, #17, mul vl] // 16-byte Folded Reload
+; PAIR-NEXT: ldr p15, [sp, #4, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p14, [sp, #5, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p13, [sp, #6, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p12, [sp, #7, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p11, [sp, #8, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p10, [sp, #9, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p9, [sp, #10, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p8, [sp, #11, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p7, [sp, #12, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p6, [sp, #13, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p5, [sp, #14, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p4, [sp, #15, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: addvl sp, sp, #18
+; PAIR-NEXT: ldr x19, [sp, #24] // 8-byte Folded Reload
+; PAIR-NEXT: ldp x29, x30, [sp], #32 // 16-byte Folded Reload
+; PAIR-NEXT: ret
+ call void @my_func2(<vscale x 16 x i8> %v)
+ ret void
+}
+
+define void @fhalf(<vscale x 8 x half> %v) #1{
+; NOPAIR-LABEL: fhalf:
+; NOPAIR: // %bb.0:
+; NOPAIR-NEXT: stp x29, x30, [sp, #-32]! // 16-byte Folded Spill
+; NOPAIR-NEXT: cntd x9
+; NOPAIR-NEXT: str x9, [sp, #16] // 8-byte Folded Spill
+; NOPAIR-NEXT: addvl sp, sp, #-18
+; NOPAIR-NEXT: str p15, [sp, #4, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p14, [sp, #5, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p13, [sp, #6, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p12, [sp, #7, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p11, [sp, #8, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p10, [sp, #9, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p9, [sp, #10, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p8, [sp, #11, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p7, [sp, #12, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p6, [sp, #13, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p5, [sp, #14, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p4, [sp, #15, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str z23, [sp, #2, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z22, [sp, #3, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z21, [sp, #4, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z20, [sp, #5, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z19, [sp, #6, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z18, [sp, #7, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z17, [sp, #8, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z16, [sp, #9, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z15, [sp, #10, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z14, [sp, #11, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z13, [sp, #12, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z12, [sp, #13, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z11, [sp, #14, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z10, [sp, #15, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z9, [sp, #16, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z8, [sp, #17, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: smstop sm
+; NOPAIR-NEXT: bl my_func
+; NOPAIR-NEXT: smstart sm
+; NOPAIR-NEXT: ldr z23, [sp, #2, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z22, [sp, #3, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z21, [sp, #4, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z20, [sp, #5, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z19, [sp, #6, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z18, [sp, #7, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z17, [sp, #8, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z16, [sp, #9, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z15, [sp, #10, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z14, [sp, #11, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z13, [sp, #12, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z12, [sp, #13, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z11, [sp, #14, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z10, [sp, #15, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z9, [sp, #16, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z8, [sp, #17, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr p15, [sp, #4, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p14, [sp, #5, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p13, [sp, #6, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p12, [sp, #7, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p11, [sp, #8, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p10, [sp, #9, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p9, [sp, #10, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p8, [sp, #11, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p7, [sp, #12, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p6, [sp, #13, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p5, [sp, #14, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p4, [sp, #15, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: addvl sp, sp, #18
+; NOPAIR-NEXT: ldp x29, x30, [sp], #32 // 16-byte Folded Reload
+; NOPAIR-NEXT: ret
+;
+; PAIR-LABEL: fhalf:
+; PAIR: // %bb.0:
+; PAIR-NEXT: stp x29, x30, [sp, #-32]! // 16-byte Folded Spill
+; PAIR-NEXT: cntd x9
+; PAIR-NEXT: str x9, [sp, #16] // 8-byte Folded Spill
+; PAIR-NEXT: addvl sp, sp, #-18
+; PAIR-NEXT: str p8, [sp, #11, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: ptrue pn8.b
+; PAIR-NEXT: str p15, [sp, #4, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z22.b, z23.b }, pn8, [sp, #4, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: st1b { z20.b, z21.b }, pn8, [sp, #8, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p14, [sp, #5, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z18.b, z19.b }, pn8, [sp, #12, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: st1b { z16.b, z17.b }, pn8, [sp, #16, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p13, [sp, #6, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z14.b, z15.b }, pn8, [sp, #20, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: st1b { z12.b, z13.b }, pn8, [sp, #24, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p12, [sp, #7, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z10.b, z11.b }, pn8, [sp, #28, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p11, [sp, #8, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p10, [sp, #9, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p9, [sp, #10, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p7, [sp, #12, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p6, [sp, #13, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p5, [sp, #14, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p4, [sp, #15, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z8.b, z9.b }, pn8, [sp, #32, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: smstop sm
+; PAIR-NEXT: bl my_func
+; PAIR-NEXT: smstart sm
+; PAIR-NEXT: ptrue pn8.b
+; PAIR-NEXT: ldr p15, [sp, #4, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ld1b { z22.b, z23.b }, pn8/z, [sp, #4, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ld1b { z20.b, z21.b }, pn8/z, [sp, #8, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ld1b { z18.b, z19.b }, pn8/z, [sp, #12, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ld1b { z16.b, z17.b }, pn8/z, [sp, #16, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ld1b { z14.b, z15.b }, pn8/z, [sp, #20, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ld1b { z12.b, z13.b }, pn8/z, [sp, #24, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ld1b { z10.b, z11.b }, pn8/z, [sp, #28, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ld1b { z8.b, z9.b }, pn8/z, [sp, #32, mul vl] // 32-byte Folded Reload
+; PAIR-NEXT: ldr p14, [sp, #5, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p13, [sp, #6, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p12, [sp, #7, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p11, [sp, #8, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p10, [sp, #9, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p9, [sp, #10, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p8, [sp, #11, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p7, [sp, #12, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p6, [sp, #13, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p5, [sp, #14, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: ldr p4, [sp, #15, mul vl] // 2-byte Folded Reload
+; PAIR-NEXT: addvl sp, sp, #18
+; PAIR-NEXT: ldp x29, x30, [sp], #32 // 16-byte Folded Reload
+; PAIR-NEXT: ret
+ call void @my_func()
+ ret void
+}
+
+define void @ffloat(<vscale x 4 x i32> %v) #2 {
+; NOPAIR-LABEL: ffloat:
+; NOPAIR: // %bb.0:
+; NOPAIR-NEXT: stp x29, x30, [sp, #-32]! // 16-byte Folded Spill
+; NOPAIR-NEXT: rdsvl x9, #1
+; NOPAIR-NEXT: lsr x9, x9, #3
+; NOPAIR-NEXT: str x9, [sp, #16] // 8-byte Folded Spill
+; NOPAIR-NEXT: cntd x9
+; NOPAIR-NEXT: str x9, [sp, #24] // 8-byte Folded Spill
+; NOPAIR-NEXT: addsvl sp, sp, #-18
+; NOPAIR-NEXT: str p15, [sp, #4, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p14, [sp, #5, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p13, [sp, #6, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p12, [sp, #7, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p11, [sp, #8, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p10, [sp, #9, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p9, [sp, #10, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p8, [sp, #11, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p7, [sp, #12, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p6, [sp, #13, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p5, [sp, #14, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str p4, [sp, #15, mul vl] // 2-byte Folded Spill
+; NOPAIR-NEXT: str z23, [sp, #2, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z22, [sp, #3, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z21, [sp, #4, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z20, [sp, #5, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z19, [sp, #6, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z18, [sp, #7, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z17, [sp, #8, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z16, [sp, #9, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z15, [sp, #10, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z14, [sp, #11, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z13, [sp, #12, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z12, [sp, #13, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z11, [sp, #14, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z10, [sp, #15, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z9, [sp, #16, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: str z8, [sp, #17, mul vl] // 16-byte Folded Spill
+; NOPAIR-NEXT: smstart sm
+; NOPAIR-NEXT: smstop sm
+; NOPAIR-NEXT: bl my_func
+; NOPAIR-NEXT: ldr z23, [sp, #2, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z22, [sp, #3, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z21, [sp, #4, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z20, [sp, #5, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z19, [sp, #6, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z18, [sp, #7, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z17, [sp, #8, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z16, [sp, #9, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z15, [sp, #10, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z14, [sp, #11, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z13, [sp, #12, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z12, [sp, #13, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z11, [sp, #14, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z10, [sp, #15, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z9, [sp, #16, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr z8, [sp, #17, mul vl] // 16-byte Folded Reload
+; NOPAIR-NEXT: ldr p15, [sp, #4, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p14, [sp, #5, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p13, [sp, #6, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p12, [sp, #7, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p11, [sp, #8, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p10, [sp, #9, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p9, [sp, #10, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p8, [sp, #11, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p7, [sp, #12, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p6, [sp, #13, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p5, [sp, #14, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: ldr p4, [sp, #15, mul vl] // 2-byte Folded Reload
+; NOPAIR-NEXT: addsvl sp, sp, #18
+; NOPAIR-NEXT: ldp x29, x30, [sp], #32 // 16-byte Folded Reload
+; NOPAIR-NEXT: ret
+;
+; PAIR-LABEL: ffloat:
+; PAIR: // %bb.0:
+; PAIR-NEXT: stp x29, x30, [sp, #-32]! // 16-byte Folded Spill
+; PAIR-NEXT: rdsvl x9, #1
+; PAIR-NEXT: lsr x9, x9, #3
+; PAIR-NEXT: str x9, [sp, #16] // 8-byte Folded Spill
+; PAIR-NEXT: cntd x9
+; PAIR-NEXT: str x9, [sp, #24] // 8-byte Folded Spill
+; PAIR-NEXT: addsvl sp, sp, #-18
+; PAIR-NEXT: str p8, [sp, #11, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: ptrue pn8.b
+; PAIR-NEXT: str p15, [sp, #4, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z22.b, z23.b }, pn8, [sp, #4, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: st1b { z20.b, z21.b }, pn8, [sp, #8, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p14, [sp, #5, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z18.b, z19.b }, pn8, [sp, #12, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: st1b { z16.b, z17.b }, pn8, [sp, #16, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p13, [sp, #6, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z14.b, z15.b }, pn8, [sp, #20, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: st1b { z12.b, z13.b }, pn8, [sp, #24, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p12, [sp, #7, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: st1b { z10.b, z11.b }, pn8, [sp, #28, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: st1b { z8.b, z9.b }, pn8, [sp, #32, mul vl] // 32-byte Folded Spill
+; PAIR-NEXT: str p11, [sp, #8, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p10, [sp, #9, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p9, [sp, #10, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p7, [sp, #12, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p6, [sp, #13, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p5, [sp, #14, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: str p4, [sp, #15, mul vl] // 2-byte Folded Spill
+; PAIR-NEXT: smstart sm
----------------
CarolineConcatto wrote:
So it is only safe to use sme2 instructions when in streaming mode. The compiler should avoid to use when in streaming compatible and locally streaming . At least that is the conclusion that I have.
I am not sure if it should check smstart and smstop when using the sme2 instructions, or if that is even possible here.
https://github.com/llvm/llvm-project/pull/109680
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