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clang-p2996/llvm/test/CodeGen/Mips/cconv/byval.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

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; NOTE: The SelectionDAG checks have been added by hand.
; RUN: llc < %s -mtriple=mips-linux-gnu -verify-machineinstrs \
; RUN: | FileCheck %s --check-prefix=O32
; RUN: llc < %s -mtriple=mips64-linux-gnu -target-abi n32 -verify-machineinstrs \
; RUN: | FileCheck %s --check-prefix=N32
; RUN: llc < %s -mtriple=mips64-linux-gnu -target-abi n64 -verify-machineinstrs \
; RUN: | FileCheck %s --check-prefix=N64
; RUN: llc < %s -mtriple=mips-linux-gnu -verify-machineinstrs -debug 2>&1 \
; RUN: | FileCheck %s --check-prefix=O32-SDAG
; RUN: llc < %s -mtriple=mips64-linux-gnu -target-abi n32 -verify-machineinstrs \
; RUN: -debug 2>&1 | FileCheck %s --check-prefix=N32-SDAG
; RUN: llc < %s -mtriple=mips64-linux-gnu -target-abi n64 -verify-machineinstrs \
; RUN: -debug 2>&1 | FileCheck %s --check-prefix=N64-SDAG
; REQUIRES: asserts
; Test that reserved argument area is shared between the memcpy call and the
; call to f2. This eliminates the nested call sequence nodes.
; Also, test that a basic call to memcpy reserves its outgoing argument area.
; FIXME: We should also be explicit about testing that the loads for the
; arguments are scheduled after the memcpy, but that wasn't enforced in
; this patch.
%struct.S1 = type { [65520 x i8] }
; O32-SDAG-LABEL: Initial selection DAG: %bb.0 'g:entry'
; O32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG-NOT: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; O32-SDAG-NOT: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetGlobalAddress:i32<ptr @f2>
; O32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG-LABEL: Initial selection DAG: %bb.0 'g:entry'
; N32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG-NOT: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; N32-SDAG-NOT: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetGlobalAddress:i32<ptr @f2>
; N32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; N64-SDAG-LABEL: Initial selection DAG: %bb.0 'g:entry'
; N64-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG-NOT: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i64'memcpy'
; N64-SDAG-NOT: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetGlobalAddress:i64<ptr @f2>
; N64-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i64<{{.*}}>
define dso_local void @g() #0 {
; O32-LABEL: g:
; O32: # %bb.0: # %entry
; O32-NEXT: lui $1, 1
; O32-NEXT: subu $sp, $sp, $1
; O32-NEXT: .cfi_def_cfa_offset 65536
; O32-NEXT: lui $1, 1
; O32-NEXT: addu $1, $sp, $1
; O32-NEXT: sw $ra, -4($1) # 4-byte Folded Spill
; O32-NEXT: .cfi_offset 31, -4
; O32-NEXT: ori $1, $zero, 65520
; O32-NEXT: subu $sp, $sp, $1
; O32-NEXT: addiu $1, $sp, 8
; O32-NEXT: addiu $5, $1, 16
; O32-NEXT: addiu $4, $sp, 16
; O32-NEXT: jal memcpy
; O32-NEXT: ori $6, $zero, 65504
; O32-NEXT: lw $7, 20($sp)
; O32-NEXT: lw $6, 16($sp)
; O32-NEXT: lw $5, 12($sp)
; O32-NEXT: jal f2
; O32-NEXT: lw $4, 8($sp)
; O32-NEXT: ori $1, $zero, 65520
; O32-NEXT: addu $sp, $sp, $1
; O32-NEXT: lui $1, 1
; O32-NEXT: addu $1, $sp, $1
; O32-NEXT: lw $ra, -4($1) # 4-byte Folded Reload
; O32-NEXT: lui $1, 1
; O32-NEXT: jr $ra
; O32-NEXT: addu $sp, $sp, $1
;
; N32-LABEL: g:
; N32: # %bb.0: # %entry
; N32-NEXT: lui $1, 1
; N32-NEXT: subu $sp, $sp, $1
; N32-NEXT: .cfi_def_cfa_offset 65536
; N32-NEXT: lui $1, 1
; N32-NEXT: addu $1, $sp, $1
; N32-NEXT: sd $ra, -8($1) # 8-byte Folded Spill
; N32-NEXT: .cfi_offset 31, -8
; N32-NEXT: ori $1, $zero, 65456
; N32-NEXT: subu $sp, $sp, $1
; N32-NEXT: addiu $1, $sp, 8
; N32-NEXT: addiu $5, $1, 64
; N32-NEXT: ori $6, $zero, 65456
; N32-NEXT: jal memcpy
; N32-NEXT: move $4, $sp
; N32-NEXT: ld $11, 64($sp)
; N32-NEXT: ld $10, 56($sp)
; N32-NEXT: ld $9, 48($sp)
; N32-NEXT: ld $8, 40($sp)
; N32-NEXT: ld $7, 32($sp)
; N32-NEXT: ld $6, 24($sp)
; N32-NEXT: ld $5, 16($sp)
; N32-NEXT: jal f2
; N32-NEXT: ld $4, 8($sp)
; N32-NEXT: ori $1, $zero, 65456
; N32-NEXT: addu $sp, $sp, $1
; N32-NEXT: lui $1, 1
; N32-NEXT: addu $1, $sp, $1
; N32-NEXT: ld $ra, -8($1) # 8-byte Folded Reload
; N32-NEXT: lui $1, 1
; N32-NEXT: jr $ra
; N32-NEXT: addu $sp, $sp, $1
;
; N64-LABEL: g:
; N64: # %bb.0: # %entry
; N64-NEXT: lui $1, 1
; N64-NEXT: dsubu $sp, $sp, $1
; N64-NEXT: .cfi_def_cfa_offset 65536
; N64-NEXT: lui $1, 1
; N64-NEXT: daddu $1, $sp, $1
; N64-NEXT: sd $ra, -8($1) # 8-byte Folded Spill
; N64-NEXT: .cfi_offset 31, -8
; N64-NEXT: ori $1, $zero, 65456
; N64-NEXT: dsubu $sp, $sp, $1
; N64-NEXT: daddiu $1, $sp, 8
; N64-NEXT: daddiu $5, $1, 64
; N64-NEXT: ori $6, $zero, 65456
; N64-NEXT: jal memcpy
; N64-NEXT: move $4, $sp
; N64-NEXT: ld $11, 64($sp)
; N64-NEXT: ld $10, 56($sp)
; N64-NEXT: ld $9, 48($sp)
; N64-NEXT: ld $8, 40($sp)
; N64-NEXT: ld $7, 32($sp)
; N64-NEXT: ld $6, 24($sp)
; N64-NEXT: ld $5, 16($sp)
; N64-NEXT: jal f2
; N64-NEXT: ld $4, 8($sp)
; N64-NEXT: ori $1, $zero, 65456
; N64-NEXT: daddu $sp, $sp, $1
; N64-NEXT: lui $1, 1
; N64-NEXT: daddu $1, $sp, $1
; N64-NEXT: ld $ra, -8($1) # 8-byte Folded Reload
; N64-NEXT: lui $1, 1
; N64-NEXT: jr $ra
; N64-NEXT: daddu $sp, $sp, $1
entry:
%a = alloca %struct.S1, align 8
call void @f2(ptr byval(%struct.S1) align 4 %a)
ret void
}
declare dso_local void @f2(ptr byval(%struct.S1) align 4) #1
; O32-SDAG-LABEL: Initial selection DAG: %bb.0 'g2:entry'
; O32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; O32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG-NOT: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; O32-SDAG-NOT: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; O32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetGlobalAddress:i32<ptr @f2>
; O32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG-LABEL: Initial selection DAG: %bb.0 'g2:entry'
; N32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; N32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG-NOT: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; N32-SDAG-NOT: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; N32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetGlobalAddress:i32<ptr @f2>
; N32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<{{.*}}>
; N64-SDAG-LABEL: Initial selection DAG: %bb.0 'g2:entry'
; N64-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i64'memcpy'
; N64-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG-NOT: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i64'memcpy'
; N64-SDAG-NOT: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i64<{{.*}}>
; N64-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetGlobalAddress:i64<ptr @f2>
; N64-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i64<{{.*}}>
define dso_local void @g2(ptr %a) {
; O32-LABEL: g2:
; O32: # %bb.0: # %entry
; O32-NEXT: lui $1, 1
; O32-NEXT: addiu $1, $1, 8
; O32-NEXT: subu $sp, $sp, $1
; O32-NEXT: .cfi_def_cfa_offset 65544
; O32-NEXT: lui $1, 1
; O32-NEXT: addu $1, $sp, $1
; O32-NEXT: sw $ra, 4($1) # 4-byte Folded Spill
; O32-NEXT: lui $1, 1
; O32-NEXT: addu $1, $sp, $1
; O32-NEXT: sw $16, 0($1) # 4-byte Folded Spill
; O32-NEXT: .cfi_offset 31, -4
; O32-NEXT: .cfi_offset 16, -8
; O32-NEXT: move $5, $4
; O32-NEXT: lui $1, 1
; O32-NEXT: addu $1, $sp, $1
; O32-NEXT: sw $4, -4($1)
; O32-NEXT: addiu $sp, $sp, -16
; O32-NEXT: addiu $16, $sp, 8
; O32-NEXT: ori $6, $zero, 65520
; O32-NEXT: jal memcpy
; O32-NEXT: move $4, $16
; O32-NEXT: addiu $sp, $sp, 16
; O32-NEXT: ori $1, $zero, 65520
; O32-NEXT: subu $sp, $sp, $1
; O32-NEXT: addiu $5, $16, 16
; O32-NEXT: addiu $4, $sp, 16
; O32-NEXT: jal memcpy
; O32-NEXT: ori $6, $zero, 65504
; O32-NEXT: lw $7, 20($sp)
; O32-NEXT: lw $6, 16($sp)
; O32-NEXT: lw $5, 12($sp)
; O32-NEXT: jal f2
; O32-NEXT: lw $4, 8($sp)
; O32-NEXT: ori $1, $zero, 65520
; O32-NEXT: addu $sp, $sp, $1
; O32-NEXT: lui $1, 1
; O32-NEXT: addu $1, $sp, $1
; O32-NEXT: lw $16, 0($1) # 4-byte Folded Reload
; O32-NEXT: lui $1, 1
; O32-NEXT: addu $1, $sp, $1
; O32-NEXT: lw $ra, 4($1) # 4-byte Folded Reload
; O32-NEXT: lui $1, 1
; O32-NEXT: addiu $1, $1, 8
; O32-NEXT: jr $ra
; O32-NEXT: addu $sp, $sp, $1
;
; N32-LABEL: g2:
; N32: # %bb.0: # %entry
; N32-NEXT: lui $1, 1
; N32-NEXT: addiu $1, $1, 16
; N32-NEXT: subu $sp, $sp, $1
; N32-NEXT: .cfi_def_cfa_offset 65552
; N32-NEXT: lui $1, 1
; N32-NEXT: addu $1, $sp, $1
; N32-NEXT: sd $ra, 8($1) # 8-byte Folded Spill
; N32-NEXT: lui $1, 1
; N32-NEXT: addu $1, $sp, $1
; N32-NEXT: sd $16, 0($1) # 8-byte Folded Spill
; N32-NEXT: .cfi_offset 31, -8
; N32-NEXT: .cfi_offset 16, -16
; N32-NEXT: move $5, $4
; N32-NEXT: lui $1, 1
; N32-NEXT: addu $1, $sp, $1
; N32-NEXT: sw $4, -4($1)
; N32-NEXT: addiu $16, $sp, 8
; N32-NEXT: ori $6, $zero, 65520
; N32-NEXT: jal memcpy
; N32-NEXT: move $4, $16
; N32-NEXT: addiu $5, $16, 64
; N32-NEXT: ori $1, $zero, 65456
; N32-NEXT: subu $sp, $sp, $1
; N32-NEXT: ori $6, $zero, 65456
; N32-NEXT: jal memcpy
; N32-NEXT: move $4, $sp
; N32-NEXT: ld $11, 64($sp)
; N32-NEXT: ld $10, 56($sp)
; N32-NEXT: ld $9, 48($sp)
; N32-NEXT: ld $8, 40($sp)
; N32-NEXT: ld $7, 32($sp)
; N32-NEXT: ld $6, 24($sp)
; N32-NEXT: ld $5, 16($sp)
; N32-NEXT: jal f2
; N32-NEXT: ld $4, 8($sp)
; N32-NEXT: ori $1, $zero, 65456
; N32-NEXT: addu $sp, $sp, $1
; N32-NEXT: lui $1, 1
; N32-NEXT: addu $1, $sp, $1
; N32-NEXT: ld $16, 0($1) # 8-byte Folded Reload
; N32-NEXT: lui $1, 1
; N32-NEXT: addu $1, $sp, $1
; N32-NEXT: ld $ra, 8($1) # 8-byte Folded Reload
; N32-NEXT: lui $1, 1
; N32-NEXT: addiu $1, $1, 16
; N32-NEXT: jr $ra
; N32-NEXT: addu $sp, $sp, $1
;
; N64-LABEL: g2:
; N64: # %bb.0: # %entry
; N64-NEXT: lui $1, 1
; N64-NEXT: daddiu $1, $1, 16
; N64-NEXT: dsubu $sp, $sp, $1
; N64-NEXT: .cfi_def_cfa_offset 65552
; N64-NEXT: lui $1, 1
; N64-NEXT: daddu $1, $sp, $1
; N64-NEXT: sd $ra, 8($1) # 8-byte Folded Spill
; N64-NEXT: lui $1, 1
; N64-NEXT: daddu $1, $sp, $1
; N64-NEXT: sd $16, 0($1) # 8-byte Folded Spill
; N64-NEXT: .cfi_offset 31, -8
; N64-NEXT: .cfi_offset 16, -16
; N64-NEXT: move $5, $4
; N64-NEXT: lui $1, 1
; N64-NEXT: daddu $1, $sp, $1
; N64-NEXT: sd $4, -8($1)
; N64-NEXT: daddiu $16, $sp, 8
; N64-NEXT: ori $6, $zero, 65520
; N64-NEXT: jal memcpy
; N64-NEXT: move $4, $16
; N64-NEXT: ori $1, $zero, 65456
; N64-NEXT: dsubu $sp, $sp, $1
; N64-NEXT: daddiu $5, $16, 64
; N64-NEXT: ori $6, $zero, 65456
; N64-NEXT: jal memcpy
; N64-NEXT: move $4, $sp
; N64-NEXT: ld $11, 64($sp)
; N64-NEXT: ld $10, 56($sp)
; N64-NEXT: ld $9, 48($sp)
; N64-NEXT: ld $8, 40($sp)
; N64-NEXT: ld $7, 32($sp)
; N64-NEXT: ld $6, 24($sp)
; N64-NEXT: ld $5, 16($sp)
; N64-NEXT: jal f2
; N64-NEXT: ld $4, 8($sp)
; N64-NEXT: ori $1, $zero, 65456
; N64-NEXT: daddu $sp, $sp, $1
; N64-NEXT: lui $1, 1
; N64-NEXT: daddu $1, $sp, $1
; N64-NEXT: ld $16, 0($1) # 8-byte Folded Reload
; N64-NEXT: lui $1, 1
; N64-NEXT: daddu $1, $sp, $1
; N64-NEXT: ld $ra, 8($1) # 8-byte Folded Reload
; N64-NEXT: lui $1, 1
; N64-NEXT: daddiu $1, $1, 16
; N64-NEXT: jr $ra
; N64-NEXT: daddu $sp, $sp, $1
entry:
%a.addr = alloca ptr
%byval-temp = alloca %struct.S1, align 8
store ptr %a, ptr %a.addr, align 4
%0 = load ptr, ptr %a.addr, align 4
call void @llvm.memcpy.p0.p0.i32(ptr align 4 %byval-temp, ptr align 1 %0, i32 65520, i1 false)
call void @f2(ptr byval(%struct.S1) align 4 %byval-temp)
ret void
}
; O32-SDAG-LABEL: Initial selection DAG: %bb.0 'g3:entry'
; O32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<16>
; O32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; O32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<16>
; N32-SDAG-LABEL: Initial selection DAG: %bb.0 'g3:entry'
; N32-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i32<0>
; N32-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i32'memcpy'
; N32-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i32<0>
; N64-SDAG-LABEL: Initial selection DAG: %bb.0 'g3:entry'
; N64-SDAG: t{{.*}}: ch,glue = callseq_start t{{.*}}, TargetConstant:i64<0>
; N64-SDAG: t{{.*}}: ch,glue = MipsISD::JmpLink t{{.*}}, TargetExternalSymbol:i64'memcpy'
; N64-SDAG: t{{.*}}: ch,glue = callseq_end t{{.*}}, TargetConstant:i64<0>
define dso_local i32 @g3(ptr %a, ptr %b) #0 {
; O32-LABEL: g3:
; O32: # %bb.0: # %entry
; O32-NEXT: addiu $sp, $sp, -32
; O32-NEXT: .cfi_def_cfa_offset 32
; O32-NEXT: sw $ra, 28($sp) # 4-byte Folded Spill
; O32-NEXT: .cfi_offset 31, -4
; O32-NEXT: sw $5, 20($sp)
; O32-NEXT: sw $4, 24($sp)
; O32-NEXT: jal memcpy
; O32-NEXT: ori $6, $zero, 65520
; O32-NEXT: addiu $2, $zero, 4
; O32-NEXT: lw $ra, 28($sp) # 4-byte Folded Reload
; O32-NEXT: jr $ra
; O32-NEXT: addiu $sp, $sp, 32
;
; N32-LABEL: g3:
; N32: # %bb.0: # %entry
; N32-NEXT: addiu $sp, $sp, -16
; N32-NEXT: .cfi_def_cfa_offset 16
; N32-NEXT: sd $ra, 8($sp) # 8-byte Folded Spill
; N32-NEXT: .cfi_offset 31, -8
; N32-NEXT: sw $5, 0($sp)
; N32-NEXT: sw $4, 4($sp)
; N32-NEXT: jal memcpy
; N32-NEXT: ori $6, $zero, 65520
; N32-NEXT: addiu $2, $zero, 4
; N32-NEXT: ld $ra, 8($sp) # 8-byte Folded Reload
; N32-NEXT: jr $ra
; N32-NEXT: addiu $sp, $sp, 16
;
; N64-LABEL: g3:
; N64: # %bb.0: # %entry
; N64-NEXT: daddiu $sp, $sp, -32
; N64-NEXT: .cfi_def_cfa_offset 32
; N64-NEXT: sd $ra, 24($sp) # 8-byte Folded Spill
; N64-NEXT: .cfi_offset 31, -8
; N64-NEXT: sd $5, 8($sp)
; N64-NEXT: sd $4, 16($sp)
; N64-NEXT: jal memcpy
; N64-NEXT: ori $6, $zero, 65520
; N64-NEXT: addiu $2, $zero, 4
; N64-NEXT: ld $ra, 24($sp) # 8-byte Folded Reload
; N64-NEXT: jr $ra
; N64-NEXT: daddiu $sp, $sp, 32
entry:
%a.addr = alloca ptr
%b.addr = alloca ptr
store ptr %a, ptr %a.addr, align 4
store ptr %b, ptr %b.addr, align 4
%0 = load ptr, ptr %a.addr, align 4
%1 = load ptr, ptr %b.addr, align 4
call void @llvm.memcpy.p0.p0.i32(ptr align 1 %0, ptr align 1 %1, i32 65520, i1 false)
ret i32 4
}
declare void @llvm.memcpy.p0.p0.i32(ptr nocapture writeonly, ptr nocapture readonly, i32, i1) #2
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