[X86] lowerShuffleAsBroadcast - use LoadSDNode::getBasePtr instead of raw getOperand() call. NFC.

[RKSimon]

No description provided.

[llvmbot]

@llvm/pr-subscribers-backend-x86

Author: Simon Pilgrim (RKSimon)

Changes

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Full diff: https://github.com/llvm/llvm-project/pull/139747.diff

1 Files Affected:

• (modified) llvm/lib/Target/X86/X86ISelLowering.cpp (+2-2)

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index e3bb5db07ac40..0beb8500b30ef 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -13084,8 +13084,8 @@ static SDValue lowerShuffleAsBroadcast(const SDLoc &DL, MVT VT, SDValue V1,
     // uops even if the original vector load is not eliminated.
 
     // Reduce the vector load and shuffle to a broadcasted scalar load.
-    LoadSDNode *Ld = cast<LoadSDNode>(V);
-    SDValue BaseAddr = Ld->getOperand(1);
+    auto *Ld = cast<LoadSDNode>(V);
+    SDValue BaseAddr = Ld->getBasePtr();
     MVT SVT = VT.getScalarType();
     unsigned Offset = BroadcastIdx * SVT.getStoreSize();
     assert((int)(Offset * 8) == BitOffset && "Unexpected bit-offset");

[llvm-ci]

LLVM Buildbot has detected a new failure on builder llvm-clang-key-instructions running on sie-linux-worker5 while building llvm at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/208/builds/1148

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

Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: tools/llvm-exegesis/RISCV/rvv/filter.test' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
/home/buildbot/buildbot-root/llvm-ki/build/bin/llvm-exegesis -mtriple=riscv64 -mcpu=sifive-x280 -benchmark-phase=assemble-measured-code --mode=inverse_throughput --opcode-name=PseudoVNCLIPU_WX_M1_MASK     --riscv-filter-config='vtype = {VXRM: rod, AVL: VLMAX, SEW: e(8|16), Policy: ta/mu}' --max-configs-per-opcode=1000 --min-instructions=10 | /home/buildbot/buildbot-root/llvm-ki/build/bin/FileCheck /home/buildbot/buildbot-root/llvm-ki/llvm-project/llvm/test/tools/llvm-exegesis/RISCV/rvv/filter.test # RUN: at line 1
+ /home/buildbot/buildbot-root/llvm-ki/build/bin/llvm-exegesis -mtriple=riscv64 -mcpu=sifive-x280 -benchmark-phase=assemble-measured-code --mode=inverse_throughput --opcode-name=PseudoVNCLIPU_WX_M1_MASK '--riscv-filter-config=vtype = {VXRM: rod, AVL: VLMAX, SEW: e(8|16), Policy: ta/mu}' --max-configs-per-opcode=1000 --min-instructions=10
+ /home/buildbot/buildbot-root/llvm-ki/build/bin/FileCheck /home/buildbot/buildbot-root/llvm-ki/llvm-project/llvm/test/tools/llvm-exegesis/RISCV/rvv/filter.test
PseudoVNCLIPU_WX_M1_MASK: Failed to produce any snippet via: instruction has tied variables, avoiding Read-After-Write issue, picking random def and use registers not aliasing each other, for uses, one unique register for each position
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/buildbot/buildbot-root/llvm-ki/build/bin/FileCheck /home/buildbot/buildbot-root/llvm-ki/llvm-project/llvm/test/tools/llvm-exegesis/RISCV/rvv/filter.test

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