cb3f415cd2
The combiner for BUILD_VECTOR that merges consecutive loads into a wide load had two issues: - It didn't check that the input loads all have the same input chain - It didn't update nodes that are chained to the original loads to be chained to the new load This caused issues with bootstrap when 3c4d2a03968ccf5889bacffe02d6fa2443b0260f was committed. This patch fixes the issue so it can unblock this commit. Differential revision: https://reviews.llvm.org/D140046
60 lines
1.8 KiB
LLVM
60 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-- -mcpu=pwr8 < %s | \
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; RUN: FileCheck %s
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%0 = type <{ %1, ptr, i32, [4 x i8] }>
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%1 = type { %2 }
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%2 = type { %3 }
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%3 = type { ptr, ptr, ptr }
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$testfunc = comdat any
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declare void @_ZdlPv() local_unnamed_addr #0
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define void @testfunc(i64 %arg) local_unnamed_addr #0 comdat {
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; CHECK-LABEL: testfunc:
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; CHECK: # %bb.0: # %bb
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; CHECK-NEXT: mflr 0
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; CHECK-NEXT: stdu 1, -80(1)
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; CHECK-NEXT: std 0, 96(1)
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; CHECK-NEXT: .cfi_def_cfa_offset 80
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; CHECK-NEXT: .cfi_offset lr, 16
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; CHECK-NEXT: .cfi_offset v30, -32
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; CHECK-NEXT: .cfi_offset v31, -16
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; CHECK-NEXT: li 4, 48
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; CHECK-NEXT: addi 3, 3, 24
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; CHECK-NEXT: stvx 30, 1, 4 # 16-byte Folded Spill
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; CHECK-NEXT: li 4, 64
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; CHECK-NEXT: stvx 31, 1, 4 # 16-byte Folded Spill
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; CHECK-NEXT: lxvd2x 63, 0, 3
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; CHECK-NEXT: xxswapd 62, 63
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; CHECK-NEXT: bc 12, 20, .LBB0_2
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; CHECK-NEXT: # %bb.1: # %bb37
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; CHECK-NEXT: bl _ZdlPv
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; CHECK-NEXT: nop
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; CHECK-NEXT: .LBB0_2: # %bb38
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; CHECK-NEXT: stxsiwx 62, 0, 3
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; CHECK-NEXT: stxsdx 63, 0, 3
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; CHECK-NEXT: li 3, 64
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; CHECK-NEXT: lvx 31, 1, 3 # 16-byte Folded Reload
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; CHECK-NEXT: li 3, 48
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; CHECK-NEXT: lvx 30, 1, 3 # 16-byte Folded Reload
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; CHECK-NEXT: addi 1, 1, 80
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; CHECK-NEXT: ld 0, 16(1)
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; CHECK-NEXT: mtlr 0
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; CHECK-NEXT: blr
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bb:
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%i = inttoptr i64 %arg to ptr
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%i6 = getelementptr inbounds %0, ptr %i, i64 0, i32 1
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%i7 = load <12 x i8>, ptr %i6, align 8
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br i1 poison, label %bb38, label %bb37
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bb37: ; preds = %bb
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tail call void @_ZdlPv() #1
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br label %bb38
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bb38: ; preds = %bb37, %bb
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store <12 x i8> %i7, ptr poison, align 8
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ret void
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}
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