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clang-p2996/llvm/test/CodeGen/BPF/pr57872.ll
Andrew Savonichev c65b4d64d4 [SelectionDAG] Do not second-guess alignment for alloca 
Alignment of an alloca in IR can be lower than the preferred alignment
on purpose, but this override essentially treats the preferred
alignment as the minimum alignment.

The patch changes this behavior to always use the specified
alignment. If alignment is not set explicitly in LLVM IR, it is set to
DL.getPrefTypeAlign(Ty) in computeAllocaDefaultAlign.

Tests are changed as well: explicit alignment is increased to match
the preferred alignment if it changes output, or omitted when it is
hard to determine the right value (e.g. for pointers, some structs, or
weird types).

Differential Revision: https://reviews.llvm.org/D135462
2023-02-09 18:45:20 +03:00

193 lines
7.4 KiB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=bpf-- | FileCheck %s
%struct.event = type { i8, [84 x i8] }
define void @foo(ptr %g) {
; CHECK-LABEL: foo:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: r1 = *(u64 *)(r1 + 0)
; CHECK-NEXT: r2 = *(u8 *)(r1 + 83)
; CHECK-NEXT: *(u8 *)(r10 - 4) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 82)
; CHECK-NEXT: *(u8 *)(r10 - 5) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 81)
; CHECK-NEXT: *(u8 *)(r10 - 6) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 80)
; CHECK-NEXT: *(u8 *)(r10 - 7) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 79)
; CHECK-NEXT: *(u8 *)(r10 - 8) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 78)
; CHECK-NEXT: *(u8 *)(r10 - 9) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 77)
; CHECK-NEXT: *(u8 *)(r10 - 10) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 76)
; CHECK-NEXT: *(u8 *)(r10 - 11) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 75)
; CHECK-NEXT: *(u8 *)(r10 - 12) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 74)
; CHECK-NEXT: *(u8 *)(r10 - 13) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 73)
; CHECK-NEXT: *(u8 *)(r10 - 14) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 72)
; CHECK-NEXT: *(u8 *)(r10 - 15) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 71)
; CHECK-NEXT: *(u8 *)(r10 - 16) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 70)
; CHECK-NEXT: *(u8 *)(r10 - 17) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 69)
; CHECK-NEXT: *(u8 *)(r10 - 18) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 68)
; CHECK-NEXT: *(u8 *)(r10 - 19) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 67)
; CHECK-NEXT: *(u8 *)(r10 - 20) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 66)
; CHECK-NEXT: *(u8 *)(r10 - 21) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 65)
; CHECK-NEXT: *(u8 *)(r10 - 22) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 64)
; CHECK-NEXT: *(u8 *)(r10 - 23) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 63)
; CHECK-NEXT: *(u8 *)(r10 - 24) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 62)
; CHECK-NEXT: *(u8 *)(r10 - 25) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 61)
; CHECK-NEXT: *(u8 *)(r10 - 26) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 60)
; CHECK-NEXT: *(u8 *)(r10 - 27) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 59)
; CHECK-NEXT: *(u8 *)(r10 - 28) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 58)
; CHECK-NEXT: *(u8 *)(r10 - 29) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 57)
; CHECK-NEXT: *(u8 *)(r10 - 30) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 56)
; CHECK-NEXT: *(u8 *)(r10 - 31) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 55)
; CHECK-NEXT: *(u8 *)(r10 - 32) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 54)
; CHECK-NEXT: *(u8 *)(r10 - 33) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 53)
; CHECK-NEXT: *(u8 *)(r10 - 34) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 52)
; CHECK-NEXT: *(u8 *)(r10 - 35) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 51)
; CHECK-NEXT: *(u8 *)(r10 - 36) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 50)
; CHECK-NEXT: *(u8 *)(r10 - 37) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 49)
; CHECK-NEXT: *(u8 *)(r10 - 38) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 48)
; CHECK-NEXT: *(u8 *)(r10 - 39) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 47)
; CHECK-NEXT: *(u8 *)(r10 - 40) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 46)
; CHECK-NEXT: *(u8 *)(r10 - 41) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 45)
; CHECK-NEXT: *(u8 *)(r10 - 42) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 44)
; CHECK-NEXT: *(u8 *)(r10 - 43) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 43)
; CHECK-NEXT: *(u8 *)(r10 - 44) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 42)
; CHECK-NEXT: *(u8 *)(r10 - 45) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 41)
; CHECK-NEXT: *(u8 *)(r10 - 46) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 40)
; CHECK-NEXT: *(u8 *)(r10 - 47) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 39)
; CHECK-NEXT: *(u8 *)(r10 - 48) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 38)
; CHECK-NEXT: *(u8 *)(r10 - 49) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 37)
; CHECK-NEXT: *(u8 *)(r10 - 50) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 36)
; CHECK-NEXT: *(u8 *)(r10 - 51) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 35)
; CHECK-NEXT: *(u8 *)(r10 - 52) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 34)
; CHECK-NEXT: *(u8 *)(r10 - 53) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 33)
; CHECK-NEXT: *(u8 *)(r10 - 54) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 32)
; CHECK-NEXT: *(u8 *)(r10 - 55) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 31)
; CHECK-NEXT: *(u8 *)(r10 - 56) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 30)
; CHECK-NEXT: *(u8 *)(r10 - 57) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 29)
; CHECK-NEXT: *(u8 *)(r10 - 58) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 28)
; CHECK-NEXT: *(u8 *)(r10 - 59) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 27)
; CHECK-NEXT: *(u8 *)(r10 - 60) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 26)
; CHECK-NEXT: *(u8 *)(r10 - 61) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 25)
; CHECK-NEXT: *(u8 *)(r10 - 62) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 24)
; CHECK-NEXT: *(u8 *)(r10 - 63) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 23)
; CHECK-NEXT: *(u8 *)(r10 - 64) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 22)
; CHECK-NEXT: *(u8 *)(r10 - 65) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 21)
; CHECK-NEXT: *(u8 *)(r10 - 66) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 20)
; CHECK-NEXT: *(u8 *)(r10 - 67) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 19)
; CHECK-NEXT: *(u8 *)(r10 - 68) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 18)
; CHECK-NEXT: *(u8 *)(r10 - 69) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 17)
; CHECK-NEXT: *(u8 *)(r10 - 70) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 16)
; CHECK-NEXT: *(u8 *)(r10 - 71) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 15)
; CHECK-NEXT: *(u8 *)(r10 - 72) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 14)
; CHECK-NEXT: *(u8 *)(r10 - 73) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 13)
; CHECK-NEXT: *(u8 *)(r10 - 74) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 12)
; CHECK-NEXT: *(u8 *)(r10 - 75) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 11)
; CHECK-NEXT: *(u8 *)(r10 - 76) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 10)
; CHECK-NEXT: *(u8 *)(r10 - 77) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 9)
; CHECK-NEXT: *(u8 *)(r10 - 78) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 8)
; CHECK-NEXT: *(u8 *)(r10 - 79) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 7)
; CHECK-NEXT: *(u8 *)(r10 - 80) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 6)
; CHECK-NEXT: *(u8 *)(r10 - 81) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 5)
; CHECK-NEXT: *(u8 *)(r10 - 82) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 4)
; CHECK-NEXT: *(u8 *)(r10 - 83) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 3)
; CHECK-NEXT: *(u8 *)(r10 - 84) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 2)
; CHECK-NEXT: *(u8 *)(r10 - 85) = r2
; CHECK-NEXT: r2 = *(u8 *)(r1 + 1)
; CHECK-NEXT: *(u8 *)(r10 - 86) = r2
; CHECK-NEXT: r1 = *(u8 *)(r1 + 0)
; CHECK-NEXT: *(u8 *)(r10 - 87) = r1
; CHECK-NEXT: r1 = r10
; CHECK-NEXT: r1 += -88
; CHECK-NEXT: call bar
; CHECK-NEXT: exit
entry:
%event = alloca %struct.event, align 8
%hostname = getelementptr inbounds %struct.event, ptr %event, i64 0, i32 1
%0 = load ptr, ptr %g, align 8
call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(84) %hostname, ptr noundef nonnull align 1 dereferenceable(84) %0, i64 84, i1 false)
call void @bar(ptr noundef nonnull %event)
ret void
}
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2
declare void @bar(ptr noundef)
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