[SelectionDAG] Improve `CLMUL` lowering for `Promote` types wider than register width by xarkenz · Pull Request #209265 · llvm/llvm-project

xarkenz · 2026-07-13T18:23:58Z

For ISD::CLMUL, add a check to PromoteIntRes_CLMUL to take advantage of the cross-product expansion in ExpandIntRes_CLMUL when possible for Promote types which are wider than the register width (e.g. i96 for 64-bit registers).

llvmorg-github-actions · 2026-07-13T18:24:41Z

@llvm/pr-subscribers-backend-risc-v
@llvm/pr-subscribers-llvm-selectiondag

@llvm/pr-subscribers-backend-aarch64

Author: Sean Clarke (xarkenz)

Changes

For ISD::CLMUL, add a check to PromoteIntRes_CLMUL to take advantage of the cross-product expansion in ExpandIntRes_CLMUL when possible for types which are wider than the register width (e.g. i96 for 64-bit registers).

Patch is 1.11 MiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/209265.diff

4 Files Affected:

(modified) llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp (+4-1)
(modified) llvm/test/CodeGen/AArch64/clmul.ll (+699)
(modified) llvm/test/CodeGen/RISCV/clmul.ll (+25765-1873)
(modified) llvm/test/CodeGen/X86/clmul.ll (+1726)

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
index 2488fb948262e..b1c92803363c7 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -1752,7 +1752,10 @@ SDValue DAGTypeLegalizer::PromoteIntRes_CLMUL(SDNode *N) {
   EVT VT = TLI.getTypeToTransformTo(*DAG.getContext(), OldVT);
 
   if (Opcode == ISD::CLMUL) {
-    if (!TLI.isOperationLegalOrCustomOrPromote(ISD::CLMUL, VT)) {
+    if (!TLI.isOperationLegalOrCustomOrPromote(ISD::CLMUL, VT) &&
+        !(getTypeAction(VT) == TargetLowering::TypeExpandInteger &&
+          TLI.isOperationLegalOrCustom(
+              ISD::CLMUL, TLI.getRegisterType(*DAG.getContext(), VT)))) {
       if (SDValue Res = TLI.expandCLMUL(N, DAG))
         return DAG.getNode(ISD::ANY_EXTEND, DL, VT, Res);
     }
diff --git a/llvm/test/CodeGen/AArch64/clmul.ll b/llvm/test/CodeGen/AArch64/clmul.ll
index bfa4b73b4e677..48cfae3eaef0d 100644
--- a/llvm/test/CodeGen/AArch64/clmul.ll
+++ b/llvm/test/CodeGen/AArch64/clmul.ll
@@ -195,6 +195,705 @@ define i64 @clmul_i64(i64 %x, i64 %y) {
   ret i64 %a
 }
 
+define i96 @clmul_i96(i96 %x, i96 %y) {
+; CHECK-NEON-LABEL: clmul_i96:
+; CHECK-NEON:       // %bb.0:
+; CHECK-NEON-NEXT:    stp x29, x30, [sp, #-96]! // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    stp x28, x27, [sp, #16] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    stp x26, x25, [sp, #32] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    stp x24, x23, [sp, #48] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    stp x22, x21, [sp, #64] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    stp x20, x19, [sp, #80] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    sub sp, sp, #592
+; CHECK-NEON-NEXT:    .cfi_def_cfa_offset 688
+; CHECK-NEON-NEXT:    .cfi_offset w19, -8
+; CHECK-NEON-NEXT:    .cfi_offset w20, -16
+; CHECK-NEON-NEXT:    .cfi_offset w21, -24
+; CHECK-NEON-NEXT:    .cfi_offset w22, -32
+; CHECK-NEON-NEXT:    .cfi_offset w23, -40
+; CHECK-NEON-NEXT:    .cfi_offset w24, -48
+; CHECK-NEON-NEXT:    .cfi_offset w25, -56
+; CHECK-NEON-NEXT:    .cfi_offset w26, -64
+; CHECK-NEON-NEXT:    .cfi_offset w27, -72
+; CHECK-NEON-NEXT:    .cfi_offset w28, -80
+; CHECK-NEON-NEXT:    .cfi_offset w30, -88
+; CHECK-NEON-NEXT:    .cfi_offset w29, -96
+; CHECK-NEON-NEXT:    sbfx x9, x2, #1, #1
+; CHECK-NEON-NEXT:    lsl x8, x0, #1
+; CHECK-NEON-NEXT:    sbfx x16, x2, #0, #1
+; CHECK-NEON-NEXT:    lsl x10, x0, #2
+; CHECK-NEON-NEXT:    sbfx x13, x2, #2, #1
+; CHECK-NEON-NEXT:    lsl x11, x0, #3
+; CHECK-NEON-NEXT:    sbfx x14, x2, #3, #1
+; CHECK-NEON-NEXT:    lsl x12, x0, #4
+; CHECK-NEON-NEXT:    sbfx x15, x2, #4, #1
+; CHECK-NEON-NEXT:    str x9, [sp, #200] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x17, x2, #8, #1
+; CHECK-NEON-NEXT:    sbfx x18, x2, #12, #1
+; CHECK-NEON-NEXT:    str x8, [sp, #512] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x8, x9, x8
+; CHECK-NEON-NEXT:    and x9, x16, x0
+; CHECK-NEON-NEXT:    str x10, [sp, #568] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x10, x13, x10
+; CHECK-NEON-NEXT:    eor x8, x9, x8
+; CHECK-NEON-NEXT:    str x11, [sp, #552] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x11, x14, x11
+; CHECK-NEON-NEXT:    sbfx x4, x2, #10, #1
+; CHECK-NEON-NEXT:    stp x14, x13, [sp, #272] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    eor x9, x10, x11
+; CHECK-NEON-NEXT:    and x10, x15, x12
+; CHECK-NEON-NEXT:    str x12, [sp, #536] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x11, x0, #5
+; CHECK-NEON-NEXT:    sbfx x14, x2, #5, #1
+; CHECK-NEON-NEXT:    lsl x12, x0, #6
+; CHECK-NEON-NEXT:    str x16, [sp, #152] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x13, x0, #7
+; CHECK-NEON-NEXT:    str x15, [sp, #288] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x15, x2, #6, #1
+; CHECK-NEON-NEXT:    sbfx x16, x2, #7, #1
+; CHECK-NEON-NEXT:    str x14, [sp, #192] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    sbfx x20, x2, #20, #1
+; CHECK-NEON-NEXT:    stp x11, x12, [sp, #480] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    and x11, x14, x11
+; CHECK-NEON-NEXT:    lsl x14, x0, #8
+; CHECK-NEON-NEXT:    str x13, [sp, #520] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    and x11, x15, x12
+; CHECK-NEON-NEXT:    stp x16, x15, [sp, #240] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    and x12, x16, x13
+; CHECK-NEON-NEXT:    and x13, x17, x14
+; CHECK-NEON-NEXT:    str x14, [sp, #544] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x14, x0, #9
+; CHECK-NEON-NEXT:    sbfx x15, x2, #9, #1
+; CHECK-NEON-NEXT:    str x17, [sp, #232] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x9, x10, x11
+; CHECK-NEON-NEXT:    eor x10, x12, x13
+; CHECK-NEON-NEXT:    str x14, [sp, #528] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x11, x15, x14
+; CHECK-NEON-NEXT:    lsl x12, x0, #11
+; CHECK-NEON-NEXT:    sbfx x17, x2, #11, #1
+; CHECK-NEON-NEXT:    lsl x14, x0, #12
+; CHECK-NEON-NEXT:    str x15, [sp, #256] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x15, x0, #10
+; CHECK-NEON-NEXT:    lsl x13, x0, #13
+; CHECK-NEON-NEXT:    sbfx x16, x2, #13, #1
+; CHECK-NEON-NEXT:    str x12, [sp, #464] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    and x11, x17, x12
+; CHECK-NEON-NEXT:    and x12, x18, x14
+; CHECK-NEON-NEXT:    str x13, [sp, #576] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x13, x16, x13
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    and x12, x4, x15
+; CHECK-NEON-NEXT:    str x14, [sp, #496] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    eor x9, x10, x12
+; CHECK-NEON-NEXT:    eor x10, x11, x13
+; CHECK-NEON-NEXT:    lsl x11, x0, #14
+; CHECK-NEON-NEXT:    sbfx x14, x2, #14, #1
+; CHECK-NEON-NEXT:    lsl x12, x0, #16
+; CHECK-NEON-NEXT:    str x15, [sp, #416] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x13, x0, #15
+; CHECK-NEON-NEXT:    sbfx x15, x2, #16, #1
+; CHECK-NEON-NEXT:    stp x18, x17, [sp, #168] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    sbfx x17, x2, #15, #1
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    str x16, [sp, #216] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x16, x2, #17, #1
+; CHECK-NEON-NEXT:    sbfx x24, x2, #26, #1
+; CHECK-NEON-NEXT:    str x14, [sp, #136] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x7, x2, #30, #1
+; CHECK-NEON-NEXT:    cmn w2, #1
+; CHECK-NEON-NEXT:    stp x12, x11, [sp, #448] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    and x11, x14, x11
+; CHECK-NEON-NEXT:    lsl x14, x0, #17
+; CHECK-NEON-NEXT:    str x13, [sp, #424] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    and x11, x17, x13
+; CHECK-NEON-NEXT:    str x15, [sp, #224] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x12, x15, x12
+; CHECK-NEON-NEXT:    and x13, x16, x14
+; CHECK-NEON-NEXT:    str x14, [sp, #504] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x14, x0, #18
+; CHECK-NEON-NEXT:    sbfx x15, x2, #18, #1
+; CHECK-NEON-NEXT:    eor x9, x10, x11
+; CHECK-NEON-NEXT:    eor x10, x12, x13
+; CHECK-NEON-NEXT:    lsl x12, x0, #19
+; CHECK-NEON-NEXT:    str x14, [sp, #472] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x11, x15, x14
+; CHECK-NEON-NEXT:    sbfx x14, x2, #19, #1
+; CHECK-NEON-NEXT:    str x17, [sp, #88] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    lsl x13, x0, #22
+; CHECK-NEON-NEXT:    str x16, [sp, #208] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x16, x2, #22, #1
+; CHECK-NEON-NEXT:    and x11, x14, x12
+; CHECK-NEON-NEXT:    str x14, [sp, #48] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x14, x0, #23
+; CHECK-NEON-NEXT:    sbfx x17, x2, #23, #1
+; CHECK-NEON-NEXT:    str x15, [sp, #184] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x15, x0, #20
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    str x12, [sp, #392] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x12, x16, x13
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    stp x13, x14, [sp, #432] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    and x13, x17, x14
+; CHECK-NEON-NEXT:    lsl x14, x0, #24
+; CHECK-NEON-NEXT:    stp x17, x16, [sp, #120] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    sbfx x16, x2, #24, #1
+; CHECK-NEON-NEXT:    eor x11, x12, x13
+; CHECK-NEON-NEXT:    str x15, [sp, #352] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x12, x20, x15
+; CHECK-NEON-NEXT:    sbfx x15, x2, #25, #1
+; CHECK-NEON-NEXT:    str x14, [sp, #584] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x13, x16, x14
+; CHECK-NEON-NEXT:    lsl x14, x0, #25
+; CHECK-NEON-NEXT:    str x16, [sp, #144] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x9, x10, x12
+; CHECK-NEON-NEXT:    eor x10, x11, x13
+; CHECK-NEON-NEXT:    lsl x13, x0, #21
+; CHECK-NEON-NEXT:    sbfx x16, x2, #21, #1
+; CHECK-NEON-NEXT:    and x11, x15, x14
+; CHECK-NEON-NEXT:    lsl x12, x0, #26
+; CHECK-NEON-NEXT:    str x14, [sp, #560] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    str x16, [sp, #40] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x11, x16, x13
+; CHECK-NEON-NEXT:    lsl x14, x0, #27
+; CHECK-NEON-NEXT:    sbfx x16, x2, #27, #1
+; CHECK-NEON-NEXT:    str x15, [sp, #104] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x15, x2, #28, #1
+; CHECK-NEON-NEXT:    str x13, [sp, #344] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x13, x0, #28
+; CHECK-NEON-NEXT:    eor x9, x9, x11
+; CHECK-NEON-NEXT:    str x12, [sp, #408] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x12, x24, x12
+; CHECK-NEON-NEXT:    and x11, x16, x14
+; CHECK-NEON-NEXT:    eor x10, x10, x12
+; CHECK-NEON-NEXT:    str x14, [sp, #384] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x14, x0, #30
+; CHECK-NEON-NEXT:    str x13, [sp, #400] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    and x11, x15, x13
+; CHECK-NEON-NEXT:    str x15, [sp, #264] // 8-byte Spill
+; CHECK-NEON-NEXT:    lsl x13, x0, #29
+; CHECK-NEON-NEXT:    sbfx x15, x2, #29, #1
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    eor x9, x10, x11
+; CHECK-NEON-NEXT:    lsl x12, x0, #31
+; CHECK-NEON-NEXT:    stp x13, x14, [sp, #368] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    and x10, x15, x13
+; CHECK-NEON-NEXT:    sbfx x13, x2, #32, #1
+; CHECK-NEON-NEXT:    and x11, x7, x14
+; CHECK-NEON-NEXT:    sbfx x21, x2, #33, #1
+; CHECK-NEON-NEXT:    str x12, [sp, #360] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    csel x11, xzr, x12, gt
+; CHECK-NEON-NEXT:    and x12, x13, x0, lsl #32
+; CHECK-NEON-NEXT:    sbfx x14, x2, #34, #1
+; CHECK-NEON-NEXT:    str x13, [sp, #32] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    and x11, x21, x0, lsl #33
+; CHECK-NEON-NEXT:    sbfx x13, x2, #35, #1
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    eor x9, x10, x12
+; CHECK-NEON-NEXT:    and x10, x14, x0, lsl #34
+; CHECK-NEON-NEXT:    sbfx x12, x2, #36, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x11
+; CHECK-NEON-NEXT:    and x11, x13, x0, lsl #35
+; CHECK-NEON-NEXT:    sbfx x25, x2, #37, #1
+; CHECK-NEON-NEXT:    sbfx x22, x2, #38, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x10
+; CHECK-NEON-NEXT:    and x10, x12, x0, lsl #36
+; CHECK-NEON-NEXT:    sbfx x19, x2, #39, #1
+; CHECK-NEON-NEXT:    str x12, [sp, #312] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x9, x9, x11
+; CHECK-NEON-NEXT:    and x11, x25, x0, lsl #37
+; CHECK-NEON-NEXT:    and x12, x22, x0, lsl #38
+; CHECK-NEON-NEXT:    sbfx x5, x2, #40, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x10
+; CHECK-NEON-NEXT:    and x10, x19, x0, lsl #39
+; CHECK-NEON-NEXT:    sbfx x26, x2, #41, #1
+; CHECK-NEON-NEXT:    str x13, [sp, #296] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    and x12, x5, x0, lsl #40
+; CHECK-NEON-NEXT:    sbfx x13, x2, #42, #1
+; CHECK-NEON-NEXT:    eor x10, x11, x10
+; CHECK-NEON-NEXT:    and x11, x26, x0, lsl #41
+; CHECK-NEON-NEXT:    sbfx x27, x2, #43, #1
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    eor x9, x10, x12
+; CHECK-NEON-NEXT:    str x13, [sp, #24] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x10, x13, x0, lsl #42
+; CHECK-NEON-NEXT:    sbfx x13, x2, #44, #1
+; CHECK-NEON-NEXT:    stp x14, x15, [sp, #8] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    eor x9, x9, x11
+; CHECK-NEON-NEXT:    and x11, x27, x0, lsl #43
+; CHECK-NEON-NEXT:    sbfx x12, x2, #45, #1
+; CHECK-NEON-NEXT:    sbfx x14, x2, #46, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x10
+; CHECK-NEON-NEXT:    and x10, x13, x0, lsl #44
+; CHECK-NEON-NEXT:    sbfx x28, x2, #47, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x11
+; CHECK-NEON-NEXT:    str x12, [sp, #304] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x11, x12, x0, lsl #45
+; CHECK-NEON-NEXT:    and x12, x14, x0, lsl #46
+; CHECK-NEON-NEXT:    sbfx x6, x2, #48, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x10
+; CHECK-NEON-NEXT:    and x10, x28, x0, lsl #47
+; CHECK-NEON-NEXT:    sbfx x29, x2, #49, #1
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    str x13, [sp, #96] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x12, x6, x0, lsl #48
+; CHECK-NEON-NEXT:    eor x13, x8, x9
+; CHECK-NEON-NEXT:    eor x9, x11, x10
+; CHECK-NEON-NEXT:    and x10, x29, x0, lsl #49
+; CHECK-NEON-NEXT:    str x14, [sp, #72] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x14, x2, #50, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x12
+; CHECK-NEON-NEXT:    sbfx x8, x2, #55, #1
+; CHECK-NEON-NEXT:    sbfx x30, x2, #51, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x10
+; CHECK-NEON-NEXT:    sbfx x10, x2, #54, #1
+; CHECK-NEON-NEXT:    and x11, x14, x0, lsl #50
+; CHECK-NEON-NEXT:    str x16, [sp, #160] // 8-byte Spill
+; CHECK-NEON-NEXT:    sbfx x16, x2, #52, #1
+; CHECK-NEON-NEXT:    and x18, x8, x0, lsl #55
+; CHECK-NEON-NEXT:    stp x10, x8, [sp, #320] // 16-byte Folded Spill
+; CHECK-NEON-NEXT:    sbfx x8, x2, #56, #1
+; CHECK-NEON-NEXT:    eor x9, x9, x11
+; CHECK-NEON-NEXT:    and x11, x30, x0, lsl #51
+; CHECK-NEON-NEXT:    and x12, x10, x0, lsl #54
+; CHECK-NEON-NEXT:    sbfx x17, x2, #53, #1
+; CHECK-NEON-NEXT:    sbfx x10, x2, #57, #1
+; CHECK-NEON-NEXT:    str x4, [sp, #112] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x4, x16, x0, lsl #52
+; CHECK-NEON-NEXT:    str x8, [sp, #80] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x8, x8, x0, lsl #56
+; CHECK-NEON-NEXT:    eor x11, x9, x11
+; CHECK-NEON-NEXT:    str x10, [sp, #56] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x12, x12, x18
+; CHECK-NEON-NEXT:    and x9, x17, x0, lsl #53
+; CHECK-NEON-NEXT:    and x10, x10, x0, lsl #57
+; CHECK-NEON-NEXT:    sbfx x23, x2, #58, #1
+; CHECK-NEON-NEXT:    eor x11, x11, x4
+; CHECK-NEON-NEXT:    eor x8, x12, x8
+; CHECK-NEON-NEXT:    eor x9, x11, x9
+; CHECK-NEON-NEXT:    sbfx x4, x2, #59, #1
+; CHECK-NEON-NEXT:    eor x12, x8, x10
+; CHECK-NEON-NEXT:    and x10, x23, x0, lsl #58
+; CHECK-NEON-NEXT:    eor x9, x13, x9
+; CHECK-NEON-NEXT:    sbfx x18, x2, #60, #1
+; CHECK-NEON-NEXT:    extr x8, x1, x0, #63
+; CHECK-NEON-NEXT:    str x9, [sp, #336] // 8-byte Spill
+; CHECK-NEON-NEXT:    eor x9, x12, x10
+; CHECK-NEON-NEXT:    ldr x10, [sp, #200] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x11, x4, x0, lsl #59
+; CHECK-NEON-NEXT:    extr x12, x1, x0, #62
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #61
+; CHECK-NEON-NEXT:    str x14, [sp, #64] // 8-byte Spill
+; CHECK-NEON-NEXT:    and x10, x10, x8
+; CHECK-NEON-NEXT:    and x8, x18, x0, lsl #60
+; CHECK-NEON-NEXT:    eor x9, x9, x11
+; CHECK-NEON-NEXT:    ldr x11, [sp, #152] // 8-byte Reload
+; CHECK-NEON-NEXT:    cmn w3, #1
+; CHECK-NEON-NEXT:    eor x15, x9, x8
+; CHECK-NEON-NEXT:    ldp x8, x9, [sp, #272] // 16-byte Folded Reload
+; CHECK-NEON-NEXT:    and x11, x11, x1
+; CHECK-NEON-NEXT:    eor x14, x11, x10
+; CHECK-NEON-NEXT:    extr x10, x1, x0, #60
+; CHECK-NEON-NEXT:    and x11, x9, x12
+; CHECK-NEON-NEXT:    and x12, x8, x13
+; CHECK-NEON-NEXT:    ldr x8, [sp, #288] // 8-byte Reload
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #59
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    extr x9, x1, x0, #57
+; CHECK-NEON-NEXT:    and x10, x8, x10
+; CHECK-NEON-NEXT:    ldr x8, [sp, #192] // 8-byte Reload
+; CHECK-NEON-NEXT:    eor x11, x14, x11
+; CHECK-NEON-NEXT:    extr x12, x1, x0, #58
+; CHECK-NEON-NEXT:    and x13, x8, x13
+; CHECK-NEON-NEXT:    extr x8, x1, x0, #56
+; CHECK-NEON-NEXT:    eor x10, x10, x13
+; CHECK-NEON-NEXT:    ldp x13, x14, [sp, #240] // 16-byte Folded Reload
+; CHECK-NEON-NEXT:    and x9, x13, x9
+; CHECK-NEON-NEXT:    ldr x13, [sp, #232] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x12, x14, x12
+; CHECK-NEON-NEXT:    eor x10, x10, x12
+; CHECK-NEON-NEXT:    ldr x12, [sp, #256] // 8-byte Reload
+; CHECK-NEON-NEXT:    extr x14, x1, x0, #52
+; CHECK-NEON-NEXT:    and x8, x13, x8
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #55
+; CHECK-NEON-NEXT:    eor x10, x11, x10
+; CHECK-NEON-NEXT:    eor x8, x9, x8
+; CHECK-NEON-NEXT:    extr x9, x1, x0, #54
+; CHECK-NEON-NEXT:    ldr x11, [sp, #112] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x12, x12, x13
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #53
+; CHECK-NEON-NEXT:    eor x8, x8, x12
+; CHECK-NEON-NEXT:    and x9, x11, x9
+; CHECK-NEON-NEXT:    ldp x12, x11, [sp, #168] // 16-byte Folded Reload
+; CHECK-NEON-NEXT:    eor x8, x8, x9
+; CHECK-NEON-NEXT:    ldr x9, [sp, #216] // 8-byte Reload
+; CHECK-NEON-NEXT:    eor x8, x10, x8
+; CHECK-NEON-NEXT:    and x11, x11, x13
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #51
+; CHECK-NEON-NEXT:    and x12, x12, x14
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    extr x12, x1, x0, #50
+; CHECK-NEON-NEXT:    extr x14, x1, x0, #49
+; CHECK-NEON-NEXT:    and x13, x9, x13
+; CHECK-NEON-NEXT:    sbfx x9, x2, #61, #1
+; CHECK-NEON-NEXT:    eor x10, x11, x13
+; CHECK-NEON-NEXT:    ldr x11, [sp, #136] // 8-byte Reload
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #47
+; CHECK-NEON-NEXT:    and x11, x11, x12
+; CHECK-NEON-NEXT:    and x12, x9, x0, lsl #61
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    ldr x11, [sp, #88] // 8-byte Reload
+; CHECK-NEON-NEXT:    eor x12, x15, x12
+; CHECK-NEON-NEXT:    extr x15, x1, x0, #39
+; CHECK-NEON-NEXT:    and x11, x11, x14
+; CHECK-NEON-NEXT:    str x12, [sp, #288] // 8-byte Spill
+; CHECK-NEON-NEXT:    ldr x12, [sp, #224] // 8-byte Reload
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    extr x11, x1, x0, #48
+; CHECK-NEON-NEXT:    eor x8, x8, x10
+; CHECK-NEON-NEXT:    extr x10, x1, x0, #46
+; CHECK-NEON-NEXT:    and x11, x12, x11
+; CHECK-NEON-NEXT:    ldr x12, [sp, #208] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x12, x12, x13
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #45
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    ldr x12, [sp, #184] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x10, x12, x10
+; CHECK-NEON-NEXT:    extr x12, x1, x0, #44
+; CHECK-NEON-NEXT:    eor x10, x11, x10
+; CHECK-NEON-NEXT:    ldr x11, [sp, #48] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x11, x11, x13
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #42
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    and x11, x20, x12
+; CHECK-NEON-NEXT:    extr x12, x1, x0, #41
+; CHECK-NEON-NEXT:    eor x10, x10, x11
+; CHECK-NEON-NEXT:    ldp x14, x11, [sp, #120] // 16-byte Folded Reload
+; CHECK-NEON-NEXT:    ldr x20, [sp, #40] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x11, x11, x13
+; CHECK-NEON-NEXT:    and x12, x14, x12
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #40
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    ldr x12, [sp, #144] // 8-byte Reload
+; CHECK-NEON-NEXT:    extr x14, x1, x0, #43
+; CHECK-NEON-NEXT:    and x12, x12, x13
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #38
+; CHECK-NEON-NEXT:    and x14, x20, x14
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    ldr x12, [sp, #104] // 8-byte Reload
+; CHECK-NEON-NEXT:    eor x10, x10, x14
+; CHECK-NEON-NEXT:    extr x14, x1, x0, #35
+; CHECK-NEON-NEXT:    lsl x20, x2, #32
+; CHECK-NEON-NEXT:    eor x8, x8, x10
+; CHECK-NEON-NEXT:    and x12, x12, x15
+; CHECK-NEON-NEXT:    extr x15, x1, x0, #34
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    and x12, x24, x13
+; CHECK-NEON-NEXT:    extr x13, x1, x0, #37
+; CHECK-NEON-NEXT:    ldr x24, [sp, #160] // 8-byte Reload
+; CHECK-NEON-NEXT:    eor x11, x11, x12
+; CHECK-NEON-NEXT:    extr x12, x1, x0, #33
+; CHECK-NEON-NEXT:    and x15, x7, x15
+; CHECK-NEON-NEXT:    extr x7, x1, x0, #36
+; CHECK-NEON-NEXT:    and x13, x24, x13
+; CHECK-NEON-NEXT:    ldr x24, [sp, #16] // 8-byte Reload
+; CHECK-NEON-NEXT:    and x12, x...
[truncated]

topperc

LGTM

xarkenz · 2026-07-14T00:28:06Z

@topperc Would you mind merging for me, unless we want to bring other reviewers on board? I don't have commit access as of yet.

llvm-ci · 2026-07-14T06:54:51Z

LLVM Buildbot has detected a new failure on builder sanitizer-aarch64-linux-bootstrap-hwasan running on sanitizer-buildbot12 while building llvm at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/55/builds/30368

Here is the relevant piece of the build log for the reference

Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
-- Testing: 100431 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_include.s (61001 of 100431)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_include.s' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp
# note: command had no output on stdout or stderr
# RUN: at line 2
not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s
# executed command: not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s
# note: command had no output on stdout or stderr

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
44.03s: LLVM :: tools/llvm-exegesis/AArch64/all-opcodes.test
36.98s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
29.32s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
27.13s: Clang :: CodeGen/X86/avx-builtins.c
26.70s: Clang :: CodeGen/X86/sse2-builtins.c
26.24s: Clang :: Preprocessor/riscv-target-features.c
26.08s: Clang :: ClangScanDeps/build-session-validation-outdated-module.c
24.27s: Clang :: Driver/arm-cortex-cpus-1.c
23.97s: Clang :: Driver/arm-cortex-cpus-2.c
23.49s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
22.93s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
21.82s: Clang :: OpenMP/target_update_codegen.cpp
21.80s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
21.69s: Clang :: CodeGen/X86/avx2-builtins.c
21.60s: Clang :: CodeGen/X86/rot-intrinsics.c
Step 11 (stage2/hwasan check) failure: stage2/hwasan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
-- Testing: 100431 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_include.s (61001 of 100431)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_include.s' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s -o /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp
# note: command had no output on stdout or stderr
# RUN: at line 2
not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s
# executed command: not /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/llvm-jitlink -noexec /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_include.s.tmp
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_include.s
# note: command had no output on stdout or stderr

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
44.03s: LLVM :: tools/llvm-exegesis/AArch64/all-opcodes.test
36.98s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
29.32s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
27.13s: Clang :: CodeGen/X86/avx-builtins.c
26.70s: Clang :: CodeGen/X86/sse2-builtins.c
26.24s: Clang :: Preprocessor/riscv-target-features.c
26.08s: Clang :: ClangScanDeps/build-session-validation-outdated-module.c
24.27s: Clang :: Driver/arm-cortex-cpus-1.c
23.97s: Clang :: Driver/arm-cortex-cpus-2.c
23.49s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
22.93s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
21.82s: Clang :: OpenMP/target_update_codegen.cpp
21.80s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
21.69s: Clang :: CodeGen/X86/avx2-builtins.c
21.60s: Clang :: CodeGen/X86/rot-intrinsics.c

…n register width (llvm#209265) For `ISD::CLMUL`, add a check to `PromoteIntRes_CLMUL` to take advantage of the cross-product expansion in `ExpandIntRes_CLMUL` when possible for `Promote` types which are wider than the register width (e.g. `i96` for 64-bit registers).

xarkenz added 2 commits July 13, 2026 13:15

Add codegen tests, generate baseline

da4a40d

Promote CLMUL without expanding if isOperationLegalOrCustom

ede9052

llvmorg-github-actions Bot added backend:AArch64 backend:RISC-V backend:X86 llvm:SelectionDAG SelectionDAGISel as well labels Jul 13, 2026

topperc reviewed Jul 13, 2026

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Comment thread llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp

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30a2504

xarkenz mentioned this pull request Jul 13, 2026

[LoopIdiomRecognize] Enable clmul optimization for CRC loops #203405

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topperc approved these changes Jul 13, 2026

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topperc merged commit 4d5bc90 into llvm:main Jul 14, 2026
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[SelectionDAG] Improve `CLMUL` lowering for `Promote` types wider than register width#209265

[SelectionDAG] Improve `CLMUL` lowering for `Promote` types wider than register width#209265
topperc merged 3 commits into
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xarkenz:clmul-lowering

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